Merge change 4868

* changes:
  Renaming bindings to binding.

41 files changed, 11599 insertions, 0 deletions

diff --git a/V8Binding/binding/DOMObjectsInclude.h b/V8Binding/binding/DOMObjectsInclude.h
new file mode 100644
index 0000000..a79f03d
--- /dev/null
+++ b/V8Binding/binding/DOMObjectsInclude.h
@@ -0,0 +1,193 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef DOMObjectsInclude_h
+#define DOMObjectsInclude_h
+
+#include "BarInfo.h"
+#include "CanvasGradient.h"
+#include "CanvasPattern.h"
+#include "CanvasPixelArray.h"
+#include "CanvasRenderingContext2D.h"
+#include "CanvasStyle.h"
+#include "CharacterData.h"
+#include "ClientRect.h"
+#include "ClientRectList.h"
+#include "Clipboard.h"
+#include "Console.h"
+#include "Counter.h"
+#include "CSSCharsetRule.h"
+#include "CSSFontFaceRule.h"
+#include "CSSImportRule.h"
+#include "CSSMediaRule.h"
+#include "CSSPageRule.h"
+#include "CSSRule.h"
+#include "CSSRuleList.h"
+#include "CSSStyleDeclaration.h"
+#include "CSSStyleRule.h"
+#include "CSSStyleSheet.h"
+#include "CSSValueList.h"
+#include "CSSVariablesDeclaration.h"
+#include "CSSVariablesRule.h"
+#include "Database.h"
+#include "DocumentType.h"
+#include "DocumentFragment.h"
+#include "DOMApplicationCache.h"
+#include "DOMCoreException.h"
+#include "DOMImplementation.h"
+#include "DOMParser.h"
+#include "DOMSelection.h"
+#include "DOMStringList.h"
+#include "DOMWindow.h"
+#include "Entity.h"
+#include "EventListener.h"
+#include "EventTarget.h"
+#include "Event.h"
+#include "EventException.h"
+#include "ExceptionCode.h"
+#include "File.h"
+#include "FileList.h"
+#include "Frame.h"
+#include "FrameLoader.h"
+#include "FrameTree.h"
+#include "History.h"
+#include "HTMLNames.h"
+#include "HTMLDocument.h"
+#include "HTMLElement.h"
+#include "HTMLImageElement.h"
+#include "HTMLInputElement.h"
+#include "HTMLSelectElement.h"
+#include "HTMLOptionsCollection.h"
+#include "ImageData.h"
+#include "InspectorController.h"
+#include "KeyboardEvent.h"
+#include "Location.h"
+#include "MediaError.h"
+#include "MediaList.h"
+#include "MediaPlayer.h"
+#include "MessageChannel.h"
+#include "MessageEvent.h"
+#include "MessagePort.h"
+#include "MimeTypeArray.h"
+#include "MouseEvent.h"
+#include "MutationEvent.h"
+#include "Navigator.h"  // for MimeTypeArray
+#include "NodeFilter.h"
+#include "Notation.h"
+#include "NodeList.h"
+#include "NodeIterator.h"
+#include "OverflowEvent.h"
+#include "Page.h"
+#include "Plugin.h"
+#include "PluginArray.h"
+#include "ProcessingInstruction.h"
+#include "ProgressEvent.h"
+#include "Range.h"
+#include "RangeException.h"
+#include "Rect.h"
+#include "RGBColor.h"
+#include "Screen.h"
+#include "ScriptExecutionContext.h"
+#include "SecurityOrigin.h"
+#include "Settings.h"
+#include "SQLTransaction.h"
+#include "SQLResultSet.h"
+#include "SQLResultSetRowList.h"
+#include "StyleSheet.h"
+#include "StyleSheetList.h"
+#include "TextEvent.h"
+#include "TextMetrics.h"
+#include "TimeRanges.h"
+#include "TreeWalker.h"
+#include "XSLTProcessor.h"
+#include "V8AbstractEventListener.h"
+#include "V8CustomEventListener.h"
+#include "V8DOMWindow.h"
+#include "V8HTMLElement.h"
+#include "V8LazyEventListener.h"
+#include "V8NodeFilterCondition.h"
+#include "V8ObjectEventListener.h"
+#include "WebKitAnimationEvent.h"
+#include "WebKitCSSKeyframeRule.h"
+#include "WebKitCSSKeyframesRule.h"
+#include "WebKitCSSMatrix.h"
+#include "WebKitCSSTransformValue.h"
+#include "WebKitPoint.h"
+#include "WebKitTransitionEvent.h"
+#include "WheelEvent.h"
+#include "XMLHttpRequest.h"
+#include "XMLHttpRequestException.h"
+#include "XMLHttpRequestProgressEvent.h"
+#include "XMLHttpRequestUpload.h"
+#include "XMLSerializer.h"
+#include "XPathEvaluator.h"
+#include "XPathException.h"
+#include "XPathExpression.h"
+#include "XPathNSResolver.h"
+#include "XPathResult.h"
+
+#if ENABLE(SVG)
+#include "SVGAngle.h"
+#include "SVGAnimatedPoints.h"
+#include "SVGColor.h"
+#include "SVGElement.h"
+#include "SVGElementInstance.h"
+#include "SVGElementInstanceList.h"
+#include "SVGException.h"
+#include "SVGLength.h"
+#include "SVGLengthList.h"
+#include "SVGNumberList.h"
+#include "SVGPaint.h"
+#include "SVGPathSeg.h"
+#include "SVGPathSegArc.h"
+#include "SVGPathSegClosePath.h"
+#include "SVGPathSegCurvetoCubic.h"
+#include "SVGPathSegCurvetoCubicSmooth.h"
+#include "SVGPathSegCurvetoQuadratic.h"
+#include "SVGPathSegCurvetoQuadraticSmooth.h"
+#include "SVGPathSegLineto.h"
+#include "SVGPathSegLinetoHorizontal.h"
+#include "SVGPathSegLinetoVertical.h"
+#include "SVGPathSegList.h"
+#include "SVGPathSegMoveto.h"
+#include "SVGPointList.h"
+#include "SVGPreserveAspectRatio.h"
+#include "SVGRenderingIntent.h"
+#include "SVGStringList.h"
+#include "SVGTransform.h"
+#include "SVGTransformList.h"
+#include "SVGUnitTypes.h"
+#include "SVGURIReference.h"
+#include "SVGZoomEvent.h"
+#include "V8SVGPODTypeWrapper.h"
+#endif // SVG
+
+#if ENABLE(WORKERS)
+#include "Worker.h"
+#include "WorkerContext.h"
+#include "WorkerLocation.h"
+#include "WorkerNavigator.h"
+#endif // WORKERS
+
+#if PLATFORM(ANDROID)
+#include "Coordinates.h"
+#include "Geolocation.h"
+#include "Geoposition.h"
+#include "PositionError.h"
+#include "PositionErrorCallback.h"
+#include "Touch.h"
+#include "TouchList.h"
+#include "TouchEvent.h"
+#include "VoidCallback.h"
+#endif
+
+namespace WebCore {
+
+// A helper class for undetectable document.all
+class UndetectableHTMLCollection : public HTMLCollection {
+};
+
+} // namespace WebCore
+
+#endif // DOMObjectsInclude_h
diff --git a/V8Binding/binding/JSDOMBinding.cpp b/V8Binding/binding/JSDOMBinding.cpp
new file mode 100644
index 0000000..c72a92b
--- /dev/null
+++ b/V8Binding/binding/JSDOMBinding.cpp
@@ -0,0 +1,52 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "config.h"
+#include "JSDOMBinding.h"
+
+#include "Document.h"
+#include "Node.h"
+
+namespace WebCore {
+
+void updateDOMNodeDocument(Node* node, Document* oldDocument,
+                           Document* newDocument)
+{
+    // We don't do anything here in V8 bindings
+}
+
+ScriptState* scriptStateFromNode(Node* node)
+{
+    // This should be never reached with V8 bindings (WebKit only uses it
+    // for non-JS bindings)
+    ASSERT_NOT_REACHED();
+    return 0;
+}
+
+} // namespace WebCore
diff --git a/V8Binding/binding/JSDOMBinding.h b/V8Binding/binding/JSDOMBinding.h
new file mode 100644
index 0000000..8ed5602
--- /dev/null
+++ b/V8Binding/binding/JSDOMBinding.h
@@ -0,0 +1,50 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Masquerade to pretend that we support JSC namespace and avoid unforking
+// This is not a reimplementation of the JSC namespace. It's just enough code
+// to avoid #ifdefs in WebKit code.
+
+#ifndef JSDOMBinding_h
+#define JSDOMBinding_h
+
+namespace WebCore {
+    class Node;
+    class Document;
+    class ScriptState;
+
+    void updateDOMNodeDocument(Node*, Document* oldDocument,
+                               Document* newDocument);
+
+    ScriptState* scriptStateFromNode(Node*);
+
+}
+
+
+#endif // JSDOMBinding_h
diff --git a/V8Binding/binding/JSXPathNSResolver.cpp b/V8Binding/binding/JSXPathNSResolver.cpp
new file mode 100644
index 0000000..2fb2849
--- /dev/null
+++ b/V8Binding/binding/JSXPathNSResolver.cpp
@@ -0,0 +1,90 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "config.h"
+#include "JSXPathNSResolver.h"
+
+#if ENABLE(XPATH)
+
+#include "v8_proxy.h"
+#include "v8_binding.h"
+#include "PlatformString.h"
+
+namespace WebCore {
+
+JSXPathNSResolver::JSXPathNSResolver(v8::Handle<v8::Object> resolver)
+: m_resolver(resolver) {
+}
+
+JSXPathNSResolver::~JSXPathNSResolver() {
+}
+
+String JSXPathNSResolver::lookupNamespaceURI(const String& prefix) {
+  v8::Handle<v8::Function> lookupNamespaceURIFunc;
+  v8::Handle<v8::String> lookupNamespaceURIName = v8::String::New("lookupNamespaceURI");
+
+  // Check if the resolver has a function property named lookupNamespaceURI.
+  if (m_resolver->Has(lookupNamespaceURIName)) {
+    v8::Handle<v8::Value> lookupNamespaceURI = m_resolver->Get(lookupNamespaceURIName);
+    if (lookupNamespaceURI->IsFunction()) {
+      lookupNamespaceURIFunc = v8::Handle<v8::Function>::Cast(lookupNamespaceURI);
+    }
+  }
+
+  if (lookupNamespaceURIFunc.IsEmpty() && !m_resolver->IsFunction()) {
+    Frame* frame = V8Proxy::retrieveActiveFrame();
+    log_info(frame, "XPathNSResolver does not have a lookupNamespaceURI method.", String());
+    return String();
+  }
+
+  // Catch exceptions from calling the namespace resolver.
+  v8::TryCatch try_catch;
+  try_catch.SetVerbose(true);  // Print exceptions to console.
+
+  const int argc = 1;
+  v8::Handle<v8::Value> argv[argc] = { v8String(prefix) };
+  v8::Handle<v8::Function> function = lookupNamespaceURIFunc.IsEmpty()
+      ? v8::Handle<v8::Function>::Cast(m_resolver)
+      : lookupNamespaceURIFunc;
+
+  V8Proxy* proxy = V8Proxy::retrieve();
+  v8::Handle<v8::Value> retval = proxy->CallFunction(function, m_resolver, argc, argv);
+
+  // Eat exceptions from namespace resolver and return an empty string. This
+  // will most likely cause NAMESPACE_ERR.
+  if (try_catch.HasCaught()) {
+    return String();
+  }
+
+  return ToWebCoreString(retval);
+}
+
+}
+
+#endif // ENABLE(XPATH)
diff --git a/V8Binding/binding/JSXPathNSResolver.h b/V8Binding/binding/JSXPathNSResolver.h
new file mode 100644
index 0000000..f0c340c
--- /dev/null
+++ b/V8Binding/binding/JSXPathNSResolver.h
@@ -0,0 +1,33 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef JSXPATHNSRESOLVER_H__
+#define JSXPATHNSRESOLVER_H__
+
+#if ENABLE(XPATH)
+
+#include <v8.h>
+#include <wtf/RefCounted.h>
+#include "XPathNSResolver.h"
+
+namespace WebCore {
+
+    class String;
+
+    class JSXPathNSResolver : public XPathNSResolver {
+    public:
+
+        JSXPathNSResolver(v8::Handle<v8::Object> resolver);
+        virtual ~JSXPathNSResolver();
+
+        virtual String lookupNamespaceURI(const String& prefix);
+
+    private:
+        v8::Handle<v8::Object> m_resolver;  // Handle to resolver object.
+    };
+}
+
+#endif  // ENABLE(XPATH)
+
+#endif  // JSXPATHNSRESOLVER_H__
diff --git a/V8Binding/binding/NPV8Object.cpp b/V8Binding/binding/NPV8Object.cpp
new file mode 100644
index 0000000..defe6bf
--- /dev/null
+++ b/V8Binding/binding/NPV8Object.cpp
@@ -0,0 +1,504 @@
+/*
+ * Copyright (C) 2004, 2006 Apple Computer, Inc.  All rights reserved.
+ * Copyright (C) 2007-2009 Google, Inc.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+
+#define max max
+#define min min
+#include <v8.h>
+#include "NPV8Object.h"
+#if PLATFORM(CHROMIUM)
+#include "ChromiumBridge.h"
+#endif
+#include "Frame.h"
+#include "npruntime_priv.h"
+#include "PlatformString.h"
+#include "ScriptController.h"
+#include "v8_custom.h"
+#include "v8_helpers.h"
+#include "V8NPUtils.h"
+#include "v8_proxy.h"
+#include "DOMWindow.h"
+
+using WebCore::V8ClassIndex;
+using WebCore::V8Custom;
+using WebCore::V8Proxy;
+
+// FIXME(mbelshe): comments on why use malloc and free.
+static NPObject* AllocV8NPObject(NPP, NPClass*)
+{
+    return static_cast<NPObject*>(malloc(sizeof(V8NPObject)));
+}
+
+static void FreeV8NPObject(NPObject* npobj)
+{
+    V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+#ifndef NDEBUG
+    V8Proxy::UnregisterGlobalHandle(object, object->v8Object);
+#endif
+    object->v8Object.Dispose();
+    free(object);
+}
+
+static v8::Handle<v8::Value>* listFromVariantArgs(const NPVariant* args,
+                                                  uint32_t argCount,
+                                                  NPObject *owner)
+{
+    v8::Handle<v8::Value>* argv = new v8::Handle<v8::Value>[argCount];
+    for (uint32_t index = 0; index < argCount; index++) {
+        const NPVariant *arg = &args[index];
+        argv[index] = convertNPVariantToV8Object(arg, owner);
+    }
+    return argv;
+}
+
+// Create an identifier (null terminated utf8 char*) from the NPIdentifier.
+static v8::Local<v8::String> NPIdentifierToV8Identifier(NPIdentifier name)
+{
+    PrivateIdentifier* identifier = static_cast<PrivateIdentifier*>(name);
+    if (identifier->isString)
+        return v8::String::New(static_cast<const char *>(identifier->value.string));
+
+    char buf[32];
+    sprintf(buf, "%d", identifier->value.number);
+    return v8::String::New(buf);
+}
+
+static NPClass V8NPObjectClass = { NP_CLASS_STRUCT_VERSION,
+                                   AllocV8NPObject,
+                                   FreeV8NPObject,
+                                   0, 0, 0, 0, 0, 0, 0, 0, 0 };
+
+// NPAPI's npruntime functions
+NPClass* npScriptObjectClass = &V8NPObjectClass;
+
+NPObject* npCreateV8ScriptObject(NPP npp, v8::Handle<v8::Object> object, WebCore::DOMWindow* root)
+{
+    // Check to see if this object is already wrapped.
+    if (object->InternalFieldCount() == V8Custom::kNPObjectInternalFieldCount &&
+        object->GetInternalField(V8Custom::kDOMWrapperTypeIndex)->IsNumber() &&
+        object->GetInternalField(V8Custom::kDOMWrapperTypeIndex)->Uint32Value() == V8ClassIndex::NPOBJECT) {
+
+        NPObject* rv = V8Proxy::ToNativeObject<NPObject>(V8ClassIndex::NPOBJECT, object);
+        NPN_RetainObject(rv);
+        return rv;
+    }
+
+    V8NPObject* obj = reinterpret_cast<V8NPObject*>(NPN_CreateObject(npp, &V8NPObjectClass));
+    obj->v8Object = v8::Persistent<v8::Object>::New(object);
+#ifndef NDEBUG
+    V8Proxy::RegisterGlobalHandle(WebCore::NPOBJECT, obj, obj->v8Object);
+#endif
+    obj->rootObject = root;
+    return reinterpret_cast<NPObject*>(obj);
+}
+
+bool NPN_Invoke(NPP npp, NPObject *npobj, NPIdentifier methodName,
+                const NPVariant *args, uint32_t argCount, NPVariant *result)
+{
+    if (!npobj)
+        return false;
+
+    if (npobj->_class == npScriptObjectClass) {
+        V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+        PrivateIdentifier *identifier = static_cast<PrivateIdentifier*>(methodName);
+        if (!identifier->isString)
+            return false;
+
+        v8::HandleScope handleScope;
+        // FIXME: should use the plugin's owner frame as the security context
+        v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+        if (context.IsEmpty())
+            return false;
+
+        v8::Context::Scope scope(context);
+
+        // Special case the "eval" method.
+        if (methodName == NPN_GetStringIdentifier("eval")) {
+          if (argCount != 1)
+              return false;
+          if (args[0].type != NPVariantType_String)
+              return false;
+          return NPN_Evaluate(npp, npobj, const_cast<NPString*>(&args[0].value.stringValue), result);
+        }
+
+        v8::Handle<v8::Value> funcObj = object->v8Object->Get(v8::String::New(identifier->value.string));
+        if (funcObj.IsEmpty() || funcObj->IsNull()) {
+            NULL_TO_NPVARIANT(*result);
+            return false;
+        }
+        if (funcObj->IsUndefined()) {
+            VOID_TO_NPVARIANT(*result);
+            return false;
+        }
+
+        WebCore::V8Proxy* proxy = GetV8Proxy(npobj);
+        ASSERT(proxy);  // must not be null
+
+        // FIXME: fix variable naming
+        // Call the function object
+        v8::Handle<v8::Function> func = v8::Handle<v8::Function>::Cast(funcObj);
+        // Create list of args to pass to v8
+        v8::Handle<v8::Value>* argv = listFromVariantArgs(args, argCount, npobj);
+        v8::Local<v8::Value> resultObj = proxy->CallFunction(func, object->v8Object, argCount, argv);
+        delete[] argv;
+
+        // If we had an error, return false.  The spec is a little unclear here, but
+        // says "Returns true if the method was successfully invoked".  If we get an
+        // error return value, was that successfully invoked?
+        if (resultObj.IsEmpty())
+            return false;
+
+        // Convert the result back to an NPVariant
+        convertV8ObjectToNPVariant(resultObj, npobj, result);
+        return true;
+    }
+
+    if (npobj->_class->invoke)
+        return npobj->_class->invoke(npobj, methodName, args, argCount, result);
+
+    VOID_TO_NPVARIANT(*result);
+    return true;
+}
+
+// FIXME: Fix it same as NPN_Invoke (HandleScope and such)
+bool NPN_InvokeDefault(NPP npp, NPObject *npobj, const NPVariant *args,
+                       uint32_t argCount, NPVariant *result)
+{
+    if (!npobj)
+        return false;
+
+    if (npobj->_class == npScriptObjectClass) {
+        V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+        VOID_TO_NPVARIANT(*result);
+
+        v8::HandleScope handleScope;
+        v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+        if (context.IsEmpty())
+            return false;
+
+        v8::Context::Scope scope(context);
+
+        // Lookup the function object
+        v8::Handle<v8::Object> funcObj(object->v8Object);
+        if (!funcObj->IsFunction())
+            return false;
+
+        // Call the function object
+        v8::Local<v8::Value> resultObj;
+        v8::Handle<v8::Function> func(v8::Function::Cast(*funcObj));
+        if (!func->IsNull()) {
+            WebCore::V8Proxy* proxy = GetV8Proxy(npobj);
+            ASSERT(proxy);
+
+            // Create list of args to pass to v8
+            v8::Handle<v8::Value>* argv = listFromVariantArgs(args, argCount, npobj);
+            resultObj = proxy->CallFunction(func, funcObj, argCount, argv);
+            delete[] argv;
+        }
+
+        // If we had an error, return false.  The spec is a little unclear here, but
+        // says "Returns true if the method was successfully invoked".  If we get an
+        // error return value, was that successfully invoked?
+        if (resultObj.IsEmpty())
+            return false;
+
+        // Convert the result back to an NPVariant.
+        convertV8ObjectToNPVariant(resultObj, npobj, result);
+        return true;
+    }
+
+    if (npobj->_class->invokeDefault)
+        return npobj->_class->invokeDefault(npobj, args, argCount, result);
+
+    VOID_TO_NPVARIANT(*result);
+    return true;
+}
+
+#if PLATFORM(ANDROID)
+static
+#endif
+bool NPN_EvaluateHelper(NPP npp, bool popupsAllowed, NPObject* npobj, NPString* npscript, NPVariant *result)
+{
+    VOID_TO_NPVARIANT(*result);
+    if (!npobj)
+        return false;
+
+    if (npobj->_class != npScriptObjectClass)
+        return false;
+
+    v8::HandleScope handleScope;
+    v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+    if (context.IsEmpty())
+        return false;
+
+    WebCore::V8Proxy* proxy = GetV8Proxy(npobj);
+    ASSERT(proxy);
+
+    v8::Context::Scope scope(context);
+
+    WebCore::String filename;
+    if (!popupsAllowed)
+        filename = "npscript";
+
+    // Convert UTF-8 stream to WebCore::String.
+    WebCore::String script = WebCore::String::fromUTF8(npscript->UTF8Characters, npscript->UTF8Length);
+    v8::Local<v8::Value> v8result = proxy->evaluate(WebCore::ScriptSourceCode(script, WebCore::KURL(filename)), 0);
+
+    // If we had an error, return false.
+    if (v8result.IsEmpty())
+        return false;
+
+    convertV8ObjectToNPVariant(v8result, npobj, result);
+    return true;
+}
+
+bool NPN_Evaluate(NPP npp, NPObject *npobj, NPString *npscript, NPVariant *result)
+{
+#if PLATFORM(CHROMIUM)
+    bool popupsAllowed = WebCore::ChromiumBridge::popupsAllowed(npp);
+#else
+    // TODO(fqian): create an Android bridge
+    bool popupsAllowed = false;
+#endif
+    return NPN_EvaluateHelper(npp, popupsAllowed, npobj, npscript, result);
+}
+
+bool NPN_GetProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName, NPVariant *result)
+{
+    if (!npobj)
+        return false;
+
+    if (npobj->_class == npScriptObjectClass) {
+        V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+        v8::HandleScope handleScope;
+        v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+        if (context.IsEmpty())
+            return false;
+
+        v8::Context::Scope scope(context);
+
+        v8::Handle<v8::Object> obj(object->v8Object);
+        v8::Local<v8::Value> v8result = obj->Get(NPIdentifierToV8Identifier(propertyName));
+
+        convertV8ObjectToNPVariant(v8result, npobj, result);
+        return true;
+    }
+
+    if (npobj->_class->hasProperty && npobj->_class->getProperty) {
+        if (npobj->_class->hasProperty(npobj, propertyName))
+            return npobj->_class->getProperty(npobj, propertyName, result);
+    }
+
+    VOID_TO_NPVARIANT(*result);
+    return false;
+}
+
+bool NPN_SetProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName, const NPVariant *value)
+{
+    if (!npobj)
+        return false;
+
+    if (npobj->_class == npScriptObjectClass) {
+        V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+        v8::HandleScope handleScope;
+        v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+        if (context.IsEmpty())
+            return false;
+
+        v8::Context::Scope scope(context);
+
+        v8::Handle<v8::Object> obj(object->v8Object);
+        obj->Set(NPIdentifierToV8Identifier(propertyName),
+                 convertNPVariantToV8Object(value, object->rootObject->frame()->script()->windowScriptNPObject()));
+        return true;
+    }
+
+    if (npobj->_class->setProperty)
+        return npobj->_class->setProperty(npobj, propertyName, value);
+
+    return false;
+}
+
+bool NPN_RemoveProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName)
+{
+    if (!npobj)
+        return false;
+    if (npobj->_class != npScriptObjectClass)
+        return false;
+
+    V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+    v8::HandleScope handleScope;
+    v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+    if (context.IsEmpty())
+        return false;
+    v8::Context::Scope scope(context);
+
+    v8::Handle<v8::Object> obj(object->v8Object);
+    // FIXME(mbelshe) - verify that setting to undefined is right.
+    obj->Set(NPIdentifierToV8Identifier(propertyName), v8::Undefined());
+    return true;
+}
+
+bool NPN_HasProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName)
+{
+    if (!npobj)
+        return false;
+
+    if (npobj->_class == npScriptObjectClass) {
+        V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+        v8::HandleScope handleScope;
+        v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+        if (context.IsEmpty())
+            return false;
+        v8::Context::Scope scope(context);
+
+        v8::Handle<v8::Object> obj(object->v8Object);
+        return obj->Has(NPIdentifierToV8Identifier(propertyName));
+    }
+
+    if (npobj->_class->hasProperty)
+        return npobj->_class->hasProperty(npobj, propertyName);
+    return false;
+}
+
+bool NPN_HasMethod(NPP npp, NPObject *npobj, NPIdentifier methodName)
+{
+    if (!npobj)
+        return false;
+
+    if (npobj->_class == npScriptObjectClass) {
+        V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+        v8::HandleScope handleScope;
+        v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+        if (context.IsEmpty())
+            return false;
+        v8::Context::Scope scope(context);
+
+        v8::Handle<v8::Object> obj(object->v8Object);
+        v8::Handle<v8::Value> prop = obj->Get(NPIdentifierToV8Identifier(methodName));
+        return prop->IsFunction();
+    }
+
+    if (npobj->_class->hasMethod)
+        return npobj->_class->hasMethod(npobj, methodName);
+    return false;
+}
+
+void NPN_SetException(NPObject *npobj, const NPUTF8 *message)
+{
+    if (npobj->_class != npScriptObjectClass)
+        return;
+    v8::HandleScope handleScope;
+    v8::Handle<v8::Context> context = getV8Context(0, npobj);
+    if (context.IsEmpty())
+        return;
+
+    v8::Context::Scope scope(context);
+    V8Proxy::ThrowError(V8Proxy::GENERAL_ERROR, message);
+}
+
+bool NPN_Enumerate(NPP npp, NPObject *npobj, NPIdentifier **identifier, uint32_t *count)
+{
+    if (!npobj)
+        return false;
+
+    if (npobj->_class == npScriptObjectClass) {
+        V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj);
+
+        v8::HandleScope handleScope;
+        v8::Handle<v8::Context> context = getV8Context(npp, npobj);
+        if (context.IsEmpty())
+            return false;
+        v8::Context::Scope scope(context);
+
+        v8::Handle<v8::Object> obj(object->v8Object);
+
+        // FIXME(fqian): http://b/issue?id=1210340: Use a v8::Object::Keys() method
+        // when it exists, instead of evaluating javascript.
+
+        // FIXME(mpcomplete): figure out how to cache this helper function.
+        // Run a helper function that collects the properties on the object into
+        // an array.
+        const char enumeratorCode[] =
+            "(function (obj) {"
+            "  var props = [];"
+            "  for (var prop in obj) {"
+            "    props[props.length] = prop;"
+            "  }"
+            "  return props;"
+            "});";
+        v8::Handle<v8::String> source = v8::String::New(enumeratorCode);
+        v8::Handle<v8::Script> script = v8::Script::Compile(source, 0);
+        v8::Handle<v8::Value> enumeratorObj = script->Run();
+        v8::Handle<v8::Function> enumerator = v8::Handle<v8::Function>::Cast(enumeratorObj);
+        v8::Handle<v8::Value> argv[] = { obj };
+        v8::Local<v8::Value> propsObj = enumerator->Call(v8::Handle<v8::Object>::Cast(enumeratorObj), 1, argv);
+        if (propsObj.IsEmpty())
+            return false;
+
+        // Convert the results into an array of NPIdentifiers.
+        v8::Handle<v8::Array> props = v8::Handle<v8::Array>::Cast(propsObj);
+        *count = props->Length();
+        *identifier = static_cast<NPIdentifier*>(malloc(sizeof(NPIdentifier*) * *count));
+        for (uint32_t i = 0; i < *count; ++i) {
+            v8::Local<v8::Value> name = props->Get(v8::Integer::New(i));
+            (*identifier)[i] = getStringIdentifier(v8::Local<v8::String>::Cast(name));
+        }
+        return true;
+    }
+
+    if (NP_CLASS_STRUCT_VERSION_HAS_ENUM(npobj->_class) && npobj->_class->enumerate)
+       return npobj->_class->enumerate(npobj, identifier, count);
+
+    return false;
+}
+
+bool NPN_Construct(NPP npp, NPObject* npobj, const NPVariant* args, uint32_t argCount, NPVariant* result)
+{
+    if (!npobj)
+        return false;
+
+    // FIXME(estade): implement this case.
+    if (npobj->_class == npScriptObjectClass) {
+        VOID_TO_NPVARIANT(*result);
+        return false;
+    }
+
+    if (NP_CLASS_STRUCT_VERSION_HAS_CTOR(npobj->_class) && npobj->_class->construct)
+        return npobj->_class->construct(npobj, args, argCount, result);
+
+    return false;
+}
diff --git a/V8Binding/binding/NPV8Object.h b/V8Binding/binding/NPV8Object.h
new file mode 100644
index 0000000..1b9713e
--- /dev/null
+++ b/V8Binding/binding/NPV8Object.h
@@ -0,0 +1,41 @@
+// Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef np_v8object_h
+#define np_v8object_h
+
+#if PLATFORM(CHROMIUM)
+#include "bindings/npruntime.h"
+#else
+#include "bridge/npruntime.h"  // use WebCore version
+#endif
+
+#include <v8.h>
+
+namespace WebCore {
+    class DOMWindow;
+}
+
+extern NPClass* npScriptObjectClass;
+
+// A V8NPObject is a NPObject which carries additional V8-specific
+// information.  It is allocated and deallocated by AllocV8NPObject()
+// and FreeV8NPObject() methods.
+struct V8NPObject {
+    NPObject object;
+    v8::Persistent<v8::Object> v8Object;
+    WebCore::DOMWindow* rootObject;
+};
+
+struct PrivateIdentifier {
+    union {
+        const NPUTF8* string;
+        int32_t number;
+    } value;
+    bool isString;
+};
+
+NPObject* npCreateV8ScriptObject(NPP npp, v8::Handle<v8::Object>, WebCore::DOMWindow*);
+
+#endif // np_v8object_h
diff --git a/V8Binding/binding/RGBColor.cpp b/V8Binding/binding/RGBColor.cpp
new file mode 100644
index 0000000..4a37ea6
--- /dev/null
+++ b/V8Binding/binding/RGBColor.cpp
@@ -0,0 +1,50 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "RGBColor.h"
+
+namespace WebCore {
+
+PassRefPtr<CSSPrimitiveValue> RGBColor::red() {
+  unsigned int value = (m_rgbcolor >> 16) & 0xFF;
+  return CSSPrimitiveValue::create(value, CSSPrimitiveValue::CSS_NUMBER);
+}
+
+PassRefPtr<CSSPrimitiveValue> RGBColor::green() {
+  unsigned int value = (m_rgbcolor >> 8) & 0xFF;
+  return CSSPrimitiveValue::create(value, CSSPrimitiveValue::CSS_NUMBER);
+}
+
+PassRefPtr<CSSPrimitiveValue> RGBColor::blue() {
+  unsigned int value = m_rgbcolor & 0xFF;
+  return CSSPrimitiveValue::create(value, CSSPrimitiveValue::CSS_NUMBER);
+}
+
+}  // namespace WebCore
+
diff --git a/V8Binding/binding/RGBColor.h b/V8Binding/binding/RGBColor.h
new file mode 100644
index 0000000..afc0500
--- /dev/null
+++ b/V8Binding/binding/RGBColor.h
@@ -0,0 +1,28 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RGBColor_h
+#define RGBColor_h
+
+#include "config.h"
+#include "CSSPrimitiveValue.h"
+#include <wtf/RefCounted.h>
+
+namespace WebCore {
+
+class RGBColor : public RefCounted<RGBColor> {
+ public:
+  RGBColor(unsigned rgbcolor) : m_rgbcolor(rgbcolor) { }
+
+  PassRefPtr<CSSPrimitiveValue> red();
+  PassRefPtr<CSSPrimitiveValue> green();
+  PassRefPtr<CSSPrimitiveValue> blue();
+
+ private:
+  unsigned m_rgbcolor;
+};
+
+}  // namespace WebCore
+
+#endif  // RGBColor_h
diff --git a/V8Binding/binding/ScriptController.cpp b/V8Binding/binding/ScriptController.cpp
new file mode 100644
index 0000000..e53606e
--- /dev/null
+++ b/V8Binding/binding/ScriptController.cpp
@@ -0,0 +1,451 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "config.h"
+#include "ScriptController.h"
+
+#if PLATFORM(CHROMIUM)
+#include "ChromiumBridge.h"
+#endif
+
+#include "CString.h"
+#include "Document.h"
+#include "DOMWindow.h"
+#include "Event.h"
+#include "EventListener.h"
+#include "EventNames.h"
+#include "Frame.h"
+#include "Node.h"
+#include "NotImplemented.h"
+#include "npruntime_priv.h"
+#include "NPV8Object.h"
+#include "ScriptSourceCode.h"
+#include "PluginView.h"
+#include "Widget.h"
+
+#include "v8_proxy.h"
+#include "v8_binding.h"
+#include "V8NPObject.h"
+
+NPRuntimeFunctions npruntime_functions = {
+    NPN_GetStringIdentifier,
+    NPN_GetStringIdentifiers,
+    NPN_GetIntIdentifier,
+    NPN_IdentifierIsString,
+    NPN_UTF8FromIdentifier,
+    NPN_IntFromIdentifier,
+    NPN_CreateObject,
+    NPN_RetainObject,
+    NPN_ReleaseObject,
+    NPN_Invoke,
+    NPN_InvokeDefault,
+    NPN_Evaluate,
+    NPN_GetProperty,
+    NPN_SetProperty,
+    NPN_RemoveProperty,
+    NPN_HasProperty,
+    NPN_HasMethod,
+    NPN_ReleaseVariantValue,
+    NPN_SetException
+};
+
+
+namespace WebCore {
+
+void ScriptController::setFlags(const char* str, int length)
+{
+    v8::V8::SetFlagsFromString(str, length);
+}
+
+Frame* ScriptController::retrieveActiveFrame()
+{
+    return V8Proxy::retrieveActiveFrame();
+}
+
+bool ScriptController::isSafeScript(Frame* target)
+{
+    return V8Proxy::CanAccessFrame(target, true);
+}
+
+void ScriptController::gcProtectJSWrapper(void* dom_object)
+{
+    V8Proxy::GCProtect(dom_object);
+}
+
+void ScriptController::gcUnprotectJSWrapper(void* dom_object)
+{
+    V8Proxy::GCUnprotect(dom_object);
+}
+
+ScriptController::ScriptController(Frame* frame)
+    : m_frame(frame)
+    , m_sourceURL(0)
+    , m_processingTimerCallback(false)
+    , m_paused(false)
+    , m_proxy(new V8Proxy(frame))
+#if ENABLE(NETSCAPE_PLUGIN_API)
+    , m_windowScriptNPObject(0)
+#endif
+{
+}
+
+ScriptController::~ScriptController()
+{
+}
+
+void ScriptController::clearScriptObjects()
+{
+    PluginObjectMap::iterator it = m_pluginObjects.begin();
+    for (; it != m_pluginObjects.end(); ++it) {
+        _NPN_UnregisterObject(it->second);
+        NPN_ReleaseObject(it->second);
+    }
+    m_pluginObjects.clear();
+
+#if ENABLE(NETSCAPE_PLUGIN_API)
+    if (m_windowScriptNPObject) {
+        // Call _NPN_DeallocateObject() instead of _NPN_ReleaseObject() so that we don't leak if a plugin fails to release the window
+        // script object properly.
+        // This shouldn't cause any problems for plugins since they should have already been stopped and destroyed at this point.
+        _NPN_DeallocateObject(m_windowScriptNPObject);
+        m_windowScriptNPObject = 0;
+    }
+#endif
+}
+
+void ScriptController::updateSecurityOrigin()
+{
+    m_proxy->updateSecurityOrigin();
+}
+
+void ScriptController::updatePlatformScriptObjects()
+{
+    notImplemented();
+}
+
+// Disconnect the proxy from its owner frame;
+void ScriptController::disconnectFrame()
+{
+    m_proxy->disconnectFrame();
+}
+
+bool ScriptController::processingUserGesture() const
+{
+    Frame* active_frame = V8Proxy::retrieveActiveFrame();
+    // No script is running, must be run by users.
+    if (!active_frame)
+        return true;
+
+    V8Proxy* active_proxy = active_frame->script()->proxy();
+
+    v8::HandleScope handle_scope;
+    v8::Handle<v8::Context> context = V8Proxy::GetContext(active_frame);
+    // TODO(fqian): find all cases context can be empty:
+    //  1) JS is disabled;
+    //  2) page is NULL;
+    if (context.IsEmpty())
+        return true;
+
+    v8::Context::Scope scope(context);
+
+    v8::Handle<v8::Object> global = context->Global();
+    v8::Handle<v8::Value> jsevent = global->Get(v8::String::NewSymbol("event"));
+    Event* event = V8Proxy::ToNativeEvent(jsevent);
+
+    // Based on code from kjs_bindings.cpp.
+    // Note: This is more liberal than Firefox's implementation.
+    if (event) {
+        const AtomicString& type = event->type();
+        bool event_ok =
+          // mouse events
+          type == eventNames().clickEvent ||
+          type == eventNames().mousedownEvent ||
+          type == eventNames().mouseupEvent ||
+          type == eventNames().dblclickEvent ||
+          // keyboard events
+          type == eventNames().keydownEvent ||
+          type == eventNames().keypressEvent ||
+          type == eventNames().keyupEvent ||
+          // other accepted events
+          type == eventNames().selectEvent ||
+          type == eventNames().changeEvent ||
+          type == eventNames().focusEvent ||
+          type == eventNames().blurEvent ||
+          type == eventNames().submitEvent;
+
+        if (event_ok)
+          return true;
+    } else if (active_proxy->inlineCode() && !active_proxy->timerCallback())
+        // This is the <a href="javascript:window.open('...')> case -> we let it
+        // through
+        return true;
+
+    // This is the <script>window.open(...)</script> case or a timer callback ->
+    // block it
+    return false;
+}
+
+void ScriptController::evaluateInNewContext(
+    const Vector<ScriptSourceCode>& sources) {
+  m_proxy->evaluateInNewContext(sources);
+}
+
+// Evaluate a script file in the environment of this proxy.
+ScriptValue ScriptController::evaluate(const ScriptSourceCode& sourceCode)
+{
+    v8::HandleScope hs;
+    v8::Handle<v8::Context> context = V8Proxy::GetContext(m_proxy->frame());
+    if (context.IsEmpty())
+        return ScriptValue();
+
+    v8::Context::Scope scope(context);
+    v8::Local<v8::Value> obj = m_proxy->evaluate(sourceCode, NULL);
+
+    if (obj.IsEmpty() || obj->IsUndefined())
+        return ScriptValue();
+
+    return ScriptValue(obj);
+}
+
+void ScriptController::disposeJSResult(v8::Persistent<v8::Value> result)
+{
+    result.Dispose();
+    result.Clear();
+}
+
+PassRefPtr<EventListener> ScriptController::createInlineEventListener(
+    const String& functionName, const String& code, Node* node)
+{
+    return m_proxy->createInlineEventListener(functionName, code, node);
+}
+
+#if ENABLE(SVG)
+PassRefPtr<EventListener> ScriptController::createSVGEventHandler(
+    const String& functionName, const String& code, Node* node)
+{
+    return m_proxy->createSVGEventHandler(functionName, code, node);
+}
+#endif
+
+void ScriptController::setEventHandlerLineno(int lineno)
+{
+    m_proxy->setEventHandlerLineno(lineno);
+}
+
+void ScriptController::finishedWithEvent(Event* evt)
+{
+    m_proxy->finishedWithEvent(evt);
+}
+
+// Create a V8 object with an interceptor of NPObjectPropertyGetter
+void ScriptController::BindToWindowObject(Frame* frame, const String& key, NPObject* object)
+{
+    v8::HandleScope handle_scope;
+
+    v8::Handle<v8::Context> context = V8Proxy::GetContext(frame);
+    if (context.IsEmpty())
+        return;
+
+    v8::Context::Scope scope(context);
+
+    v8::Handle<v8::Object> value = CreateV8ObjectForNPObject(object, NULL);
+
+    // Attach to the global object
+    v8::Handle<v8::Object> global = context->Global();
+    global->Set(v8String(key), value);
+}
+
+void ScriptController::collectGarbage()
+{
+    v8::HandleScope hs;
+    v8::Handle<v8::Context> context = V8Proxy::GetContext(m_proxy->frame());
+    if (context.IsEmpty())
+        return;
+
+    v8::Context::Scope scope(context);
+
+    m_proxy->evaluate(ScriptSourceCode("if (window.gc) void(gc());"), NULL);
+}
+
+NPRuntimeFunctions* ScriptController::functions()
+{
+    return &npruntime_functions;
+}
+
+
+bool ScriptController::haveInterpreter() const
+{
+    return m_proxy->ContextInitialized();
+}
+
+bool ScriptController::isEnabled() const
+{
+    return m_proxy->isEnabled();
+}
+
+PassScriptInstance ScriptController::createScriptInstanceForWidget(Widget* widget)
+{
+    ASSERT(widget != 0);
+
+#if PLATFORM(CHROMIUM)
+    if (widget->isFrameView())
+        return 0;
+
+    NPObject* npObject = ChromiumBridge::pluginScriptableObject(widget);
+#elif PLATFORM(ANDROID)
+    if (!widget->isPluginView())
+        return 0;
+
+    PluginView* pluginView = static_cast<PluginView*>(widget);
+    NPObject* npObject = pluginView->getNPObject();
+#endif
+    if (!npObject)
+        return 0;
+    // Frame Memory Management for NPObjects
+    // -------------------------------------
+    // NPObjects are treated differently than other objects wrapped by JS.
+    // NPObjects can be created either by the browser (e.g. the main
+    // window object) or by the plugin (the main plugin object
+    // for a HTMLEmbedElement).  Further,
+    // unlike most DOM Objects, the frame is especially careful to ensure
+    // NPObjects terminate at frame teardown because if a plugin leaks a
+    // reference, it could leak its objects (or the browser's objects).
+    //
+    // The Frame maintains a list of plugin objects (m_pluginObjects)
+    // which it can use to quickly find the wrapped embed object.
+    //
+    // Inside the NPRuntime, we've added a few methods for registering
+    // wrapped NPObjects.  The purpose of the registration is because
+    // javascript garbage collection is non-deterministic, yet we need to
+    // be able to tear down the plugin objects immediately.  When an object
+    // is registered, javascript can use it.  When the object is destroyed,
+    // or when the object's "owning" object is destroyed, the object will
+    // be un-registered, and the javascript engine must not use it.
+    //
+    // Inside the javascript engine, the engine can keep a reference to the
+    // NPObject as part of its wrapper.  However, before accessing the object
+    // it must consult the NPN_Registry.
+
+    v8::Local<v8::Object> wrapper = CreateV8ObjectForNPObject(npObject, NULL);
+
+    // Track the plugin object.  We've been given a reference to the object.
+    m_pluginObjects.set(widget, npObject);
+
+    return V8ScriptInstance::create(wrapper);
+}
+
+void ScriptController::cleanupScriptObjectsForPlugin(void* nativeHandle)
+{
+    PluginObjectMap::iterator it = m_pluginObjects.find(nativeHandle);
+    if (it == m_pluginObjects.end())
+        return;
+    _NPN_UnregisterObject(it->second);
+    NPN_ReleaseObject(it->second);
+    m_pluginObjects.remove(it);
+}
+
+static NPObject* createNoScriptObject()
+{
+    notImplemented();
+    return 0;
+}
+
+static NPObject* createScriptObject(Frame* frame)
+{
+    v8::HandleScope handleScope;
+    v8::Handle<v8::Context> context = V8Proxy::GetContext(frame);
+    if (context.IsEmpty())
+        return createNoScriptObject();
+
+    v8::Context::Scope scope(context);
+    DOMWindow* window = frame->domWindow();
+    v8::Handle<v8::Value> global = V8Proxy::ToV8Object(V8ClassIndex::DOMWINDOW, window);
+    ASSERT(global->IsObject());
+    return npCreateV8ScriptObject(0, v8::Handle<v8::Object>::Cast(global), window);
+}
+
+NPObject* ScriptController::windowScriptNPObject()
+{
+    if (m_windowScriptNPObject)
+        return m_windowScriptNPObject;
+
+    if (isEnabled()) {
+        // JavaScript is enabled, so there is a JavaScript window object.
+        // Return an NPObject bound to the window object.
+        m_windowScriptNPObject = createScriptObject(m_frame);
+        _NPN_RegisterObject(m_windowScriptNPObject, NULL);
+    } else {
+        // JavaScript is not enabled, so we cannot bind the NPObject to the
+        // JavaScript window object.  Instead, we create an NPObject of a
+        // different class, one which is not bound to a JavaScript object.
+        m_windowScriptNPObject = createNoScriptObject();
+    }
+    return m_windowScriptNPObject;
+}
+
+NPObject* ScriptController::createScriptObjectForPluginElement(HTMLPlugInElement* plugin)
+{
+    // Can't create NPObjects when JavaScript is disabled
+    if (!isEnabled())
+        return createNoScriptObject();
+
+    v8::HandleScope handleScope;
+    v8::Handle<v8::Context> context = V8Proxy::GetContext(m_frame);
+    if (context.IsEmpty())
+        return createNoScriptObject();
+    v8::Context::Scope scope(context);
+
+    DOMWindow* window = m_frame->domWindow();
+    v8::Handle<v8::Value> v8plugin = V8Proxy::ToV8Object(V8ClassIndex::HTMLEMBEDELEMENT, plugin);
+    if (!v8plugin->IsObject())
+        return createNoScriptObject();
+
+    return npCreateV8ScriptObject(0, v8::Handle<v8::Object>::Cast(v8plugin), window);
+}
+
+
+void ScriptController::clearWindowShell()
+{
+    // V8 binding expects ScriptController::clearWindowShell only be called
+    // when a frame is loading a new page. V8Proxy::clearForNavigation
+    // creates a new context for the new page.
+    m_proxy->clearForNavigation();
+}
+
+void ScriptController::attachDebugger(void*)
+{
+    notImplemented();
+}
+
+void ScriptController::updateDocument()
+{
+    m_proxy->updateDocument();
+}
+
+}  // namespace WebCpre
diff --git a/V8Binding/binding/ScriptController.h b/V8Binding/binding/ScriptController.h
new file mode 100644
index 0000000..40534fb
--- /dev/null
+++ b/V8Binding/binding/ScriptController.h
@@ -0,0 +1,271 @@
+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// An interface to abstract implementation differences
+// for various Javascript engines.
+
+#ifndef ScriptController_h
+#define ScriptController_h
+
+#include "HashMap.h"
+#include "MessagePort.h"
+#include "ScriptInstance.h"
+#include "ScriptValue.h"
+#include "SecurityOrigin.h"
+
+#if PLATFORM(CHROMIUM)
+#include "bindings/npruntime.h"
+#else
+#include "bridge/npruntime.h"  // use WebCore version
+#endif
+
+#include <wtf/HashMap.h>
+#include <wtf/Vector.h>
+
+#include "v8.h"
+#include "v8_proxy.h"
+
+// JavaScript implementations which expose NPObject will need to implement
+// these methods.
+typedef void        (*NPN_ReleaseVariantValueProcPtr) (NPVariant *variant);
+
+typedef NPIdentifier(*NPN_GetStringIdentifierProcPtr) (const NPUTF8 *name);
+typedef void        (*NPN_GetStringIdentifiersProcPtr) (const NPUTF8 **names,
+                         int32_t nameCount,
+                         NPIdentifier *identifiers);
+typedef NPIdentifier(*NPN_GetIntIdentifierProcPtr) (int32_t intid);
+typedef int32_t     (*NPN_IntFromIdentifierProcPtr) (NPIdentifier identifier);
+typedef bool        (*NPN_IdentifierIsStringProcPtr) (NPIdentifier identifier);
+typedef NPUTF8 *    (*NPN_UTF8FromIdentifierProcPtr) (NPIdentifier identifier);
+
+typedef NPObject*   (*NPN_CreateObjectProcPtr) (NPP,
+                         NPClass *aClass);
+typedef NPObject*   (*NPN_RetainObjectProcPtr) (NPObject *obj);
+typedef void        (*NPN_ReleaseObjectProcPtr) (NPObject *obj);
+typedef bool        (*NPN_InvokeProcPtr) (NPP npp,
+                         NPObject *obj,
+                         NPIdentifier methodName,
+                         const NPVariant *args,
+                         unsigned argCount,
+                         NPVariant *result);
+typedef bool        (*NPN_InvokeDefaultProcPtr) (NPP npp,
+                         NPObject *obj,
+                         const NPVariant *args,
+                         unsigned argCount,
+                         NPVariant *result);
+typedef bool        (*NPN_EvaluateProcPtr) (NPP npp,
+                         NPObject *obj,
+                         NPString *script,
+                         NPVariant *result);
+typedef bool        (*NPN_GetPropertyProcPtr) (NPP npp,
+                         NPObject *obj,
+                         NPIdentifier propertyName,
+                         NPVariant *result);
+typedef bool        (*NPN_SetPropertyProcPtr) (NPP npp,
+                         NPObject *obj,
+                         NPIdentifier propertyName,
+                         const NPVariant *value);
+typedef bool        (*NPN_HasPropertyProcPtr) (NPP,
+                         NPObject *npobj,
+                         NPIdentifier propertyName);
+typedef bool        (*NPN_HasMethodProcPtr) (NPP npp,
+                         NPObject *npobj,
+                         NPIdentifier methodName);
+typedef bool        (*NPN_RemovePropertyProcPtr) (NPP npp,
+                         NPObject *obj,
+                         NPIdentifier propertyName);
+typedef void        (*NPN_SetExceptionProcPtr) (NPObject *obj,
+                         const NPUTF8 *message);
+
+typedef struct _NPRuntimeFunctions {
+    NPN_GetStringIdentifierProcPtr getStringIdentifier;
+    NPN_GetStringIdentifiersProcPtr getStringIdentifiers;
+    NPN_GetIntIdentifierProcPtr getIntIdentifier;
+    NPN_IdentifierIsStringProcPtr identifierIsString;
+    NPN_UTF8FromIdentifierProcPtr utf8FromIdentifier;
+    NPN_IntFromIdentifierProcPtr intFromIdentifier;
+    NPN_CreateObjectProcPtr createObject;
+    NPN_RetainObjectProcPtr retainObject;
+    NPN_ReleaseObjectProcPtr releaseObject;
+    NPN_InvokeProcPtr invoke;
+    NPN_InvokeDefaultProcPtr invokeDefault;
+    NPN_EvaluateProcPtr evaluate;
+    NPN_GetPropertyProcPtr getProperty;
+    NPN_SetPropertyProcPtr setProperty;
+    NPN_RemovePropertyProcPtr removeProperty;
+    NPN_HasPropertyProcPtr hasProperty;
+    NPN_HasMethodProcPtr hasMethod;
+    NPN_ReleaseVariantValueProcPtr releaseVariantValue;
+    NPN_SetExceptionProcPtr setException;
+} NPRuntimeFunctions;
+
+namespace WebCore {
+class Document;
+class EventListener;
+class Event;
+class Frame;
+class HTMLPlugInElement;
+class Node;
+class ScriptSourceCode;
+class String;
+class Widget;
+
+typedef v8::Local<v8::Object> JSInstance;
+typedef v8::Local<v8::Object> JSInstanceHandle;
+typedef v8::Persistent<v8::Object> JSPersistentInstance;
+typedef v8::Local<v8::Value> JSException;
+typedef v8::Persistent<v8::Value> JSResult;
+
+class ScriptController {
+public:
+    ScriptController(Frame*);
+    ~ScriptController();
+
+    // TODO(eseidel): V8Proxy should either be folded into ScriptController
+    // or this accessor should be made JSProxy*
+    V8Proxy* proxy() { return m_proxy.get(); }
+
+    // Evaluate a script file in the environment of this proxy.
+    // If succeeded, 'succ' is set to true and result is returned
+    // as a string.
+    ScriptValue evaluate(const ScriptSourceCode&);
+
+    // Executes JavaScript in a new context associated with the web frame. The
+    // script gets its own global scope and its own prototypes for intrinsic
+    // JavaScript objects (String, Array, and so-on). It shares the wrappers for
+    // all DOM nodes and DOM constructors.
+    void evaluateInNewContext(const Vector<ScriptSourceCode>& sources);
+
+    // JSC has a WindowShell object, but for V8, the ScriptController
+    // is the WindowShell.
+    bool haveWindowShell() const { return m_proxy->ContextInitialized(); }
+
+    // Masquerade 'this' as the windowShell.
+    // This is a bit of a hack, but provides reasonable compatibility
+    // with what JSC does as well.
+    ScriptController* windowShell() { return this; }
+
+    void disposeJSResult(JSResult result);
+    void collectGarbage();
+
+    PassRefPtr<EventListener> createInlineEventListener(const String& functionName, const String& code, Node*);
+#if ENABLE(SVG)
+    PassRefPtr<EventListener> createSVGEventHandler(const String& functionName, const String& code, Node*);
+#endif
+
+    // Creates a property of the global object of a frame.
+    void BindToWindowObject(Frame*, const String& key, NPObject*);
+
+    NPRuntimeFunctions* functions();
+
+    PassScriptInstance createScriptInstanceForWidget(Widget*);
+
+    void disconnectFrame();
+
+    // Check if the javascript engine has been initialized.
+    bool haveInterpreter() const;
+
+    bool isEnabled() const;
+
+    // TODO(eseidel): void* is a compile hack
+    void attachDebugger(void*);
+
+    // Create a NPObject wrapper for a JSObject
+    // NPObject *WrapScriptObject(NPP pluginId, JSObject* objectToWrap,
+    //                           JSRootObject* originRootObject,
+    //                           JSRootObject* rootObject);
+
+    // --- Static methods assume we are running VM in single thread, ---
+    // --- and there is only one VM instance.                        ---
+
+    // Returns the frame of the calling code is in.
+    // Not necessary the frame of this proxy.
+    // For example, JS code in frame A calls windowB.open(...).
+    // Window::open method has the frame pointer of B, but
+    // the execution context is in frame A, so it needs
+    // frame A's loader to complete URL.
+    static Frame* retrieveActiveFrame();
+
+    // Check whether it is safe to access a frame in another domain.
+    static bool isSafeScript(Frame* target);
+
+    // Pass command-line flags to the JS engine
+    static void setFlags(const char* str, int length);
+
+    // Protect and unprotect the JS wrapper from garbage collected.
+    static void gcProtectJSWrapper(void* object);
+    static void gcUnprotectJSWrapper(void* object);
+
+    void finishedWithEvent(Event*);
+    void setEventHandlerLineno(int lineno);
+
+    void setProcessingTimerCallback(bool b) { m_processingTimerCallback = b; }
+    bool processingUserGesture() const;
+
+    void setPaused(bool b) { m_paused = b; }
+    bool isPaused() const { return m_paused; }
+
+    const String* sourceURL() const { return m_sourceURL; } // 0 if we are not evaluating any script
+
+    void clearWindowShell();
+    void updateDocument();
+
+    void updateSecurityOrigin();
+    void clearScriptObjects();
+    void updatePlatformScriptObjects();
+    void cleanupScriptObjectsForPlugin(void*);
+
+#if ENABLE(NETSCAPE_PLUGIN_API)
+    NPObject* createScriptObjectForPluginElement(HTMLPlugInElement*);
+    NPObject* windowScriptNPObject();
+#endif
+
+private:
+    Frame* m_frame;
+    const String* m_sourceURL;
+
+    bool m_processingTimerCallback;
+    bool m_paused;
+
+    OwnPtr<V8Proxy> m_proxy;
+    typedef HashMap<void*, NPObject*> PluginObjectMap;
+
+    // A mapping between Widgets and their corresponding script object.
+    // This list is used so that when the plugin dies, we can immediately
+    // invalidate all sub-objects which are associated with that plugin.
+    // The frame keeps a NPObject reference for each item on the list.
+    PluginObjectMap m_pluginObjects;
+#if ENABLE(NETSCAPE_PLUGIN_API)
+    NPObject* m_windowScriptNPObject;
+#endif
+};
+
+}  // namespace WebCore
+
+#endif  // ScriptController_h
diff --git a/V8Binding/binding/UndetectableHTMLCollection.idl b/V8Binding/binding/UndetectableHTMLCollection.idl
new file mode 100644
index 0000000..bcb2aee
--- /dev/null
+++ b/V8Binding/binding/UndetectableHTMLCollection.idl
@@ -0,0 +1,14 @@
+// Copyright (c) 2008 The Chromium Authors. All rights reserved.  Use of this
+// source code is governed by a BSD-style license that can be found in the
+// LICENSE file.
+
+module html {
+
+    // This interface is used for undetectable HTMLCollections.
+    // An undetectable HTMLCollection behaves like an HTMLCollection
+    // when used, but the 'typeof' operator returns undefined and
+    // ToBoolean returns false.
+    interface UndetectableHTMLCollection : HTMLCollection {
+    };
+
+}
diff --git a/V8Binding/binding/V8CanvasPixelArrayCustom.cpp b/V8Binding/binding/V8CanvasPixelArrayCustom.cpp
new file mode 100644
index 0000000..d5441a1
--- /dev/null
+++ b/V8Binding/binding/V8CanvasPixelArrayCustom.cpp
@@ -0,0 +1,77 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "config.h"
+
+#include "v8_binding.h"
+#include "v8_custom.h"
+#include "v8_proxy.h"
+
+#include "CanvasPixelArray.h"
+
+namespace WebCore {
+
+// Get the specified value from the pixel buffer and return it wrapped as a
+// JavaScript Number object to V8. Accesses outside the valid pixel buffer
+// range return "undefined".
+INDEXED_PROPERTY_GETTER(CanvasPixelArray) {
+    INC_STATS("DOM.CanvasPixelArray.IndexedPropertyGetter");
+    CanvasPixelArray* pixelBuffer =
+        V8Proxy::ToNativeObject<CanvasPixelArray>(
+            V8ClassIndex::CANVASPIXELARRAY,
+            info.Holder());
+
+    if ((index < 0) || (index >= pixelBuffer->length())) {
+        return v8::Undefined();
+    }
+    unsigned char result;
+    if (!pixelBuffer->get(index, result)) {
+        return v8::Undefined();
+    }
+    return v8::Number::New(result);
+}
+
+
+// Set the specified value in the pixel buffer. Accesses outside the valid pixel
+// buffer range are silently ignored.
+INDEXED_PROPERTY_SETTER(CanvasPixelArray) {
+    INC_STATS("DOM.CanvasPixelArray.IndexedPropertySetter");
+    CanvasPixelArray* pixelBuffer =
+        V8Proxy::ToNativeObject<CanvasPixelArray>(
+            V8ClassIndex::CANVASPIXELARRAY,
+            info.Holder());
+
+    if ((index >= 0) && (index < pixelBuffer->length())) {
+        pixelBuffer->set(index, value->NumberValue());
+    }
+    return value;
+}
+
+
+}  // namespace WebCore
diff --git a/V8Binding/binding/V8InitializeThreading.cpp b/V8Binding/binding/V8InitializeThreading.cpp
new file mode 100644
index 0000000..869e374
--- /dev/null
+++ b/V8Binding/binding/V8InitializeThreading.cpp
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "V8InitializeThreading.h"
+#include <wtf/Threading.h>
+
+namespace V8 {
+
+void initializeThreading() {
+    static bool initializedThreading = false;
+    if (!initializedThreading) {
+        WTF::initializeThreading();
+        initializedThreading = true;
+    }
+}
+
+}  // namespace JSC
+
diff --git a/V8Binding/binding/V8InitializeThreading.h b/V8Binding/binding/V8InitializeThreading.h
new file mode 100644
index 0000000..e548441
--- /dev/null
+++ b/V8Binding/binding/V8InitializeThreading.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+ 
+#ifndef InitializeThreading_h
+#define InitializeThreading_h
+
+namespace V8 {
+
+    // This function must be called from the main thread. It is safe to call it repeatedly.
+    // Darwin is an exception to this rule: it is OK to call this function from any thread, even reentrantly.
+    void initializeThreading();
+}
+
+#endif // InitializeThreading_h
diff --git a/V8Binding/binding/V8MessagePortCustom.cpp b/V8Binding/binding/V8MessagePortCustom.cpp
new file mode 100644
index 0000000..6405b67
--- /dev/null
+++ b/V8Binding/binding/V8MessagePortCustom.cpp
@@ -0,0 +1,239 @@
+/*
+* Copyright (C) 2009 Google Inc. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*
+*     * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above
+* copyright notice, this list of conditions and the following disclaimer
+* in the documentation and/or other materials provided with the
+* distribution.
+*     * Neither the name of Google Inc. nor the names of its
+* contributors may be used to endorse or promote products derived from
+* this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include "config.h"
+
+#include "v8_binding.h"
+#include "v8_custom.h"
+#include "v8_proxy.h"
+
+#include "V8Document.h"
+#include "V8HTMLDocument.h"
+#include "V8ObjectEventListener.h"
+
+#include "ExceptionCode.h"
+#include "MessagePort.h"
+
+namespace WebCore {
+
+// FIXME: merge these with XHR's CreateHiddenXHRDependency
+
+// Use an array to hold dependents. It works like a ref-counted scheme.
+// A value can be added more than once to the xhr object.
+static void CreateHiddenDependency(v8::Local<v8::Object> object,
+                                   v8::Local<v8::Value> value)
+{
+    ASSERT(V8Proxy::GetDOMWrapperType(object) == V8ClassIndex::MESSAGEPORT);
+    v8::Local<v8::Value> cache = object->GetInternalField(V8Custom::kMessagePortRequestCacheIndex);
+    if (cache->IsNull() || cache->IsUndefined()) {
+        cache = v8::Array::New();
+        object->SetInternalField(V8Custom::kMessagePortRequestCacheIndex, cache);
+    }
+
+    v8::Local<v8::Array> cacheArray = v8::Local<v8::Array>::Cast(cache);
+    cacheArray->Set(v8::Integer::New(cacheArray->Length()), value);
+}
+
+static void RemoveHiddenDependency(v8::Local<v8::Object> object,
+                                   v8::Local<v8::Value> value)
+{
+    ASSERT(V8Proxy::GetDOMWrapperType(object) == V8ClassIndex::MESSAGEPORT);
+    v8::Local<v8::Value> cache = object->GetInternalField(V8Custom::kMessagePortRequestCacheIndex);
+    ASSERT(cache->IsArray());
+    v8::Local<v8::Array> cacheArray = v8::Local<v8::Array>::Cast(cache);
+    for (int i = cacheArray->Length() - 1; i >= 0; i--) {
+        v8::Local<v8::Value> cached = cacheArray->Get(v8::Integer::New(i));
+        if (cached->StrictEquals(value)) {
+            cacheArray->Delete(i);
+            return;
+        }
+    }
+
+  // We should only get here if we try to remove an event listener that was
+  // never added.
+}
+
+ACCESSOR_GETTER(MessagePortOnmessage)
+{
+    INC_STATS("DOM.MessagePort.onmessage._get");
+    MessagePort* messagePort = V8Proxy::ToNativeObject<MessagePort>(
+        V8ClassIndex::MESSAGEPORT, info.Holder());
+    if (messagePort->onmessage()) {
+        V8ObjectEventListener* listener =
+            static_cast<V8ObjectEventListener*>(messagePort->onmessage());
+        v8::Local<v8::Object> v8Listener = listener->getListenerObject();
+        return v8Listener;
+    }
+    return v8::Undefined();
+}
+
+ACCESSOR_SETTER(MessagePortOnmessage)
+{
+    INC_STATS("DOM.MessagePort.onmessage._set");
+    MessagePort* messagePort = V8Proxy::ToNativeObject<MessagePort>(
+        V8ClassIndex::MESSAGEPORT, info.Holder());
+    if (value->IsNull()) {
+        if (messagePort->onmessage()) {
+            V8ObjectEventListener* listener =
+                static_cast<V8ObjectEventListener*>(messagePort->onmessage());
+            v8::Local<v8::Object> v8Listener = listener->getListenerObject();
+            RemoveHiddenDependency(info.Holder(), v8Listener);
+        }
+
+        // Clear the listener
+        messagePort->setOnmessage(0);
+
+    } else {
+        V8Proxy* proxy = V8Proxy::retrieve(messagePort->scriptExecutionContext());
+        if (!proxy)
+            return;
+
+        RefPtr<EventListener> listener =
+            proxy->FindOrCreateObjectEventListener(value, false);
+        if (listener) {
+            messagePort->setOnmessage(listener);
+            CreateHiddenDependency(info.Holder(), value);
+        }
+    }
+}
+
+ACCESSOR_GETTER(MessagePortOnclose)
+{
+    INC_STATS("DOM.MessagePort.onclose._get");
+    MessagePort* messagePort = V8Proxy::ToNativeObject<MessagePort>(
+        V8ClassIndex::MESSAGEPORT, info.Holder());
+    if (messagePort->onclose()) {
+        V8ObjectEventListener* listener =
+            static_cast<V8ObjectEventListener*>(messagePort->onclose());
+        v8::Local<v8::Object> v8Listener = listener->getListenerObject();
+        return v8Listener;
+    }
+    return v8::Undefined();
+}
+
+ACCESSOR_SETTER(MessagePortOnclose)
+{
+    INC_STATS("DOM.MessagePort.onclose._set");
+    MessagePort* messagePort = V8Proxy::ToNativeObject<MessagePort>(
+        V8ClassIndex::MESSAGEPORT, info.Holder());
+    if (value->IsNull()) {
+        if (messagePort->onclose()) {
+            V8ObjectEventListener* listener =
+                static_cast<V8ObjectEventListener*>(messagePort->onclose());
+            v8::Local<v8::Object> v8Listener = listener->getListenerObject();
+            RemoveHiddenDependency(info.Holder(), v8Listener);
+        }
+
+        // Clear the listener
+        messagePort->setOnclose(0);
+    } else {
+        V8Proxy* proxy = V8Proxy::retrieve(messagePort->scriptExecutionContext());
+        if (!proxy)
+            return;
+
+        RefPtr<EventListener> listener =
+            proxy->FindOrCreateObjectEventListener(value, false);
+        if (listener) {
+            messagePort->setOnclose(listener);
+            CreateHiddenDependency(info.Holder(), value);
+        }
+    }
+}
+
+CALLBACK_FUNC_DECL(MessagePortStartConversation)
+{
+    INC_STATS("DOM.MessagePort.StartConversation()");
+    if (args.Length() < 1) {
+        V8Proxy::ThrowError(V8Proxy::SYNTAX_ERROR, "Not enough arguments");
+        return v8::Undefined();
+    }
+
+    MessagePort* messagePort = V8Proxy::ToNativeObject<MessagePort>(
+        V8ClassIndex::MESSAGEPORT, args.Holder());
+
+    V8Proxy* proxy = V8Proxy::retrieve(messagePort->scriptExecutionContext());
+    if (!proxy)
+        return v8::Undefined();
+
+    RefPtr<MessagePort> port =
+        messagePort->startConversation(messagePort->scriptExecutionContext(),
+        ToWebCoreString(args[0]));
+    v8::Handle<v8::Value> wrapper =
+        V8Proxy::ToV8Object(V8ClassIndex::MESSAGEPORT, port.get());
+    return wrapper;
+}
+
+CALLBACK_FUNC_DECL(MessagePortAddEventListener)
+{
+    INC_STATS("DOM.MessagePort.AddEventListener()");
+    MessagePort* messagePort = V8Proxy::ToNativeObject<MessagePort>(
+        V8ClassIndex::MESSAGEPORT, args.Holder());
+
+    V8Proxy* proxy = V8Proxy::retrieve(messagePort->scriptExecutionContext());
+    if (!proxy)
+        return v8::Undefined();
+
+    RefPtr<EventListener> listener =
+        proxy->FindOrCreateObjectEventListener(args[1], false);
+    if (listener) {
+        String type = ToWebCoreString(args[0]);
+        bool useCapture = args[2]->BooleanValue();
+        messagePort->addEventListener(type, listener, useCapture);
+
+        CreateHiddenDependency(args.Holder(), args[1]);
+    }
+    return v8::Undefined();
+}
+
+CALLBACK_FUNC_DECL(MessagePortRemoveEventListener)
+{
+    INC_STATS("DOM.MessagePort.RemoveEventListener()");
+    MessagePort* messagePort = V8Proxy::ToNativeObject<MessagePort>(
+        V8ClassIndex::MESSAGEPORT, args.Holder());
+
+    V8Proxy* proxy = V8Proxy::retrieve(messagePort->scriptExecutionContext());
+    if (!proxy)
+        return v8::Undefined();  // probably leaked
+
+    RefPtr<EventListener> listener =
+        proxy->FindObjectEventListener(args[1], false);
+
+    if (listener) {
+        String type = ToWebCoreString(args[0]);
+        bool useCapture = args[2]->BooleanValue();
+        messagePort->removeEventListener(type, listener.get(), useCapture);
+
+        RemoveHiddenDependency(args.Holder(), args[1]);
+    }
+
+    return v8::Undefined();
+}
+
+} // namespace WebCore
diff --git a/V8Binding/binding/V8NPObject.cpp b/V8Binding/binding/V8NPObject.cpp
new file mode 100644
index 0000000..60e66a9
--- /dev/null
+++ b/V8Binding/binding/V8NPObject.cpp
@@ -0,0 +1,369 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+// 
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "config.h"
+
+#include "v8_custom.h"
+#include "v8_helpers.h"
+#include "V8NPObject.h"
+#include "V8NPUtils.h"
+#include "NPV8Object.h"
+#include "npruntime_priv.h"
+#include "v8_proxy.h"
+#include "dom_wrapper_map.h"
+#include "HTMLPlugInElement.h"
+#include "V8HTMLAppletElement.h"
+#include "V8HTMLEmbedElement.h"
+#include "V8HTMLObjectElement.h"
+
+using namespace WebCore;
+
+enum InvokeFunctionType {
+    INVOKE_METHOD = 1,
+    INVOKE_DEFAULT = 2
+};
+
+// TODO(mbelshe): need comments.
+// Params: holder could be HTMLEmbedElement or NPObject
+static v8::Handle<v8::Value> NPObjectInvokeImpl(const v8::Arguments& args, InvokeFunctionType funcId)
+{
+    NPObject* npobject;
+
+    // These three types are subtypes of HTMLPlugInElement.
+    if (V8HTMLAppletElement::HasInstance(args.Holder()) ||
+        V8HTMLEmbedElement::HasInstance(args.Holder()) ||
+        V8HTMLObjectElement::HasInstance(args.Holder())) {
+        // The holder object is a subtype of HTMLPlugInElement.
+        HTMLPlugInElement* imp = V8Proxy::DOMWrapperToNode<HTMLPlugInElement>(args.Holder());
+        ScriptInstance scriptInstance = imp->getInstance();
+        if (scriptInstance)
+            npobject = V8Proxy::ToNativeObject<NPObject>(V8ClassIndex::NPOBJECT, scriptInstance->instance());
+        else
+          npobject = NULL;
+    } else {
+        // The holder object is not a subtype of HTMLPlugInElement, it
+        // must be an NPObject which has three internal fields.
+        if (args.Holder()->InternalFieldCount() != V8Custom::kNPObjectInternalFieldCount) {
+            V8Proxy::ThrowError(V8Proxy::REFERENCE_ERROR, "NPMethod called on non-NPObject");
+            return v8::Undefined();
+        }
+        npobject = V8Proxy::ToNativeObject<NPObject>(V8ClassIndex::NPOBJECT, args.Holder());
+    }
+
+    // Verify that our wrapper wasn't using a NPObject which
+    // has already been deleted.
+    if (!npobject || !_NPN_IsAlive(npobject)) {
+        V8Proxy::ThrowError(V8Proxy::REFERENCE_ERROR, "NPObject deleted");
+        return v8::Undefined();
+    }
+
+    // wrap up parameters
+    int argc = args.Length();
+    NPVariant* npArgs = new NPVariant[argc];
+
+    for (int i = 0; i < argc; i++)
+        convertV8ObjectToNPVariant(args[i], npobject, &npArgs[i]);
+
+    NPVariant result;
+    VOID_TO_NPVARIANT(result);
+
+    switch (funcId) {
+    case INVOKE_METHOD:
+        if (npobject->_class->invoke) {
+            v8::Handle<v8::String> function_name(v8::String::Cast(*args.Data()));
+            NPIdentifier ident = getStringIdentifier(function_name);
+            npobject->_class->invoke(npobject, ident, npArgs, argc, &result);
+        }
+        break;
+    case INVOKE_DEFAULT:
+        if (npobject->_class->invokeDefault)
+            npobject->_class->invokeDefault(npobject, npArgs, argc, &result);
+        break;
+    default:
+        break;
+    }
+
+    for (int i=0; i < argc; i++)
+        NPN_ReleaseVariantValue(&npArgs[i]);
+    delete[] npArgs;
+
+    // unwrap return values
+    v8::Handle<v8::Value> rv = convertNPVariantToV8Object(&result, npobject);
+    NPN_ReleaseVariantValue(&result);
+
+    return rv;
+}
+
+
+v8::Handle<v8::Value> NPObjectMethodHandler(const v8::Arguments& args)
+{
+    return NPObjectInvokeImpl(args, INVOKE_METHOD);
+}
+
+
+v8::Handle<v8::Value> NPObjectInvokeDefaultHandler(const v8::Arguments& args)
+{
+    return NPObjectInvokeImpl(args, INVOKE_DEFAULT);
+}
+
+
+static void WeakTemplateCallback(v8::Persistent<v8::Value> obj, void* param);
+
+// NPIdentifier is PrivateIdentifier*.
+static WeakReferenceMap<PrivateIdentifier, v8::FunctionTemplate> \
+    static_template_map(&WeakTemplateCallback);
+
+static void WeakTemplateCallback(v8::Persistent<v8::Value> obj, void* param)
+{
+    PrivateIdentifier* iden = static_cast<PrivateIdentifier*>(param);
+    ASSERT(iden != NULL);
+    ASSERT(static_template_map.contains(iden));
+
+    static_template_map.forget(iden);
+}
+
+
+static v8::Handle<v8::Value> NPObjectGetProperty(v8::Local<v8::Object> self,
+                                                 NPIdentifier ident,
+                                                 v8::Local<v8::Value> key)
+{
+    NPObject* npobject = V8Proxy::ToNativeObject<NPObject>(V8ClassIndex::NPOBJECT, self);
+
+    // Verify that our wrapper wasn't using a NPObject which
+    // has already been deleted.
+    if (!npobject || !_NPN_IsAlive(npobject)) {
+        V8Proxy::ThrowError(V8Proxy::REFERENCE_ERROR, "NPObject deleted");
+        return v8::Handle<v8::Value>();
+    }
+
+    if (npobject->_class->hasProperty &&
+        npobject->_class->hasProperty(npobject, ident) &&
+        npobject->_class->getProperty) {
+
+        NPVariant result;
+        VOID_TO_NPVARIANT(result);
+        if (!npobject->_class->getProperty(npobject, ident, &result))
+            return v8::Handle<v8::Value>();
+
+        v8::Handle<v8::Value> rv = convertNPVariantToV8Object(&result, npobject);
+        NPN_ReleaseVariantValue(&result);
+        return rv;
+    } else if (key->IsString() && npobject->_class->hasMethod && npobject->_class->hasMethod(npobject, ident)) {
+        PrivateIdentifier* id = static_cast<PrivateIdentifier*>(ident);
+        v8::Persistent<v8::FunctionTemplate> desc = static_template_map.get(id);
+        // Cache templates using identifier as the key.
+        if (desc.IsEmpty()) {
+            // Create a new template
+            v8::Local<v8::FunctionTemplate> temp = v8::FunctionTemplate::New();
+            temp->SetCallHandler(NPObjectMethodHandler, key);
+            desc = v8::Persistent<v8::FunctionTemplate>::New(temp);
+            static_template_map.set(id, desc);
+        }
+
+        // FunctionTemplate caches function for each context.
+        v8::Local<v8::Function> func = desc->GetFunction();
+        func->SetName(v8::Handle<v8::String>::Cast(key));
+        return func;
+    }
+
+    return v8::Handle<v8::Value>();
+}
+
+v8::Handle<v8::Value> NPObjectNamedPropertyGetter(v8::Local<v8::String> name,
+                                                  const v8::AccessorInfo& info)
+{
+    NPIdentifier ident = getStringIdentifier(name);
+    return NPObjectGetProperty(info.Holder(), ident, name);
+}
+
+v8::Handle<v8::Value> NPObjectIndexedPropertyGetter(uint32_t index,
+                                                    const v8::AccessorInfo& info)
+{
+    NPIdentifier ident = NPN_GetIntIdentifier(index);
+    return NPObjectGetProperty(info.Holder(), ident, v8::Number::New(index));
+}
+
+v8::Handle<v8::Value> NPObjectGetNamedProperty(v8::Local<v8::Object> self,
+                                               v8::Local<v8::String> name)
+{
+    NPIdentifier ident = getStringIdentifier(name);
+    return NPObjectGetProperty(self, ident, name);
+}
+
+v8::Handle<v8::Value> NPObjectGetIndexedProperty(v8::Local<v8::Object> self,
+                                                 uint32_t index)
+{
+    NPIdentifier ident = NPN_GetIntIdentifier(index);
+    return NPObjectGetProperty(self, ident, v8::Number::New(index));
+}
+
+static v8::Handle<v8::Value> NPObjectSetProperty(v8::Local<v8::Object> self,
+                                                 NPIdentifier ident,
+                                                 v8::Local<v8::Value> value)
+{
+    NPObject* npobject = V8Proxy::ToNativeObject<NPObject>(V8ClassIndex::NPOBJECT, self);
+
+    // Verify that our wrapper wasn't using a NPObject which
+    // has already been deleted.
+    if (!npobject || !_NPN_IsAlive(npobject)) {
+      V8Proxy::ThrowError(V8Proxy::REFERENCE_ERROR, "NPObject deleted");
+      return value;  // intercepted, but an exception was thrown
+    }
+
+    if (npobject->_class->hasProperty &&
+        npobject->_class->hasProperty(npobject, ident) &&
+        npobject->_class->setProperty) {
+
+        NPVariant npvalue;
+        VOID_TO_NPVARIANT(npvalue);
+        convertV8ObjectToNPVariant(value, npobject, &npvalue);
+        bool succ = npobject->_class->setProperty(npobject, ident, &npvalue);
+        NPN_ReleaseVariantValue(&npvalue);
+        if (succ)
+            return value;  // intercept the call
+    }
+    return v8::Local<v8::Value>();  // do not intercept the call
+}
+
+
+v8::Handle<v8::Value> NPObjectNamedPropertySetter(v8::Local<v8::String> name,
+                                                  v8::Local<v8::Value> value,
+                                                  const v8::AccessorInfo& info)
+{
+    NPIdentifier ident = getStringIdentifier(name);
+    return NPObjectSetProperty(info.Holder(), ident, value);
+}
+
+
+v8::Handle<v8::Value> NPObjectIndexedPropertySetter(uint32_t index,
+                                                    v8::Local<v8::Value> value,
+                                                    const v8::AccessorInfo& info)
+{
+    NPIdentifier ident = NPN_GetIntIdentifier(index);
+    return NPObjectSetProperty(info.Holder(), ident, value);
+}
+
+v8::Handle<v8::Value> NPObjectSetNamedProperty(v8::Local<v8::Object> self,
+                                               v8::Local<v8::String> name,
+                                               v8::Local<v8::Value> value)
+{
+    NPIdentifier ident = getStringIdentifier(name);
+    return NPObjectSetProperty(self, ident, value);
+}
+
+v8::Handle<v8::Value> NPObjectSetIndexedProperty(v8::Local<v8::Object> self,
+                                                 uint32_t index,
+                                                 v8::Local<v8::Value> value)
+{
+    NPIdentifier ident = NPN_GetIntIdentifier(index);
+    return NPObjectSetProperty(self, ident, value);
+}
+
+
+static void WeakNPObjectCallback(v8::Persistent<v8::Value> obj, void* param);
+
+static DOMWrapperMap<NPObject> staticNpobjectMap(&WeakNPObjectCallback);
+
+static void WeakNPObjectCallback(v8::Persistent<v8::Value> obj, void* param)
+{
+    NPObject* npobject = static_cast<NPObject*>(param);
+    ASSERT(staticNpobjectMap.contains(npobject));
+    ASSERT(npobject != NULL);
+
+    // Must remove from our map before calling NPN_ReleaseObject().
+    // NPN_ReleaseObject can call ForgetV8ObjectForNPObject, which
+    // uses the table as well.
+    staticNpobjectMap.forget(npobject);
+
+    if (_NPN_IsAlive(npobject))
+        NPN_ReleaseObject(npobject);
+}
+
+
+v8::Local<v8::Object> CreateV8ObjectForNPObject(NPObject* object, NPObject* root)
+{
+    static v8::Persistent<v8::FunctionTemplate> npObjectDesc;
+
+    ASSERT(v8::Context::InContext());
+
+    // If this is a v8 object, just return it.
+    if (object->_class == npScriptObjectClass) {
+        V8NPObject* v8npobject = reinterpret_cast<V8NPObject*>(object);
+        return v8::Local<v8::Object>::New(v8npobject->v8Object);
+    }
+
+    // If we've already wrapped this object, just return it.
+    if (staticNpobjectMap.contains(object))
+        return v8::Local<v8::Object>::New(staticNpobjectMap.get(object));
+
+    // TODO: we should create a Wrapper type as a subclass of JSObject.
+    // It has two internal fields, field 0 is the wrapped pointer,
+    // and field 1 is the type. There should be an api function that
+    // returns unused type id.
+    // The same Wrapper type can be used by DOM bindings.
+    if (npObjectDesc.IsEmpty()) {
+        npObjectDesc = v8::Persistent<v8::FunctionTemplate>::New(v8::FunctionTemplate::New());
+        npObjectDesc->InstanceTemplate()->SetInternalFieldCount(V8Custom::kNPObjectInternalFieldCount);
+        npObjectDesc->InstanceTemplate()->SetNamedPropertyHandler(NPObjectNamedPropertyGetter, NPObjectNamedPropertySetter);
+        npObjectDesc->InstanceTemplate()->SetIndexedPropertyHandler(NPObjectIndexedPropertyGetter, NPObjectIndexedPropertySetter);
+        npObjectDesc->InstanceTemplate()->SetCallAsFunctionHandler(NPObjectInvokeDefaultHandler);
+    }
+
+    v8::Handle<v8::Function> func = npObjectDesc->GetFunction();
+    v8::Local<v8::Object> value = SafeAllocation::NewInstance(func);
+    
+    // If we were unable to allocate the instance we avoid wrapping 
+    // and registering the NP object. 
+    if (value.IsEmpty()) 
+        return value;
+
+    WrapNPObject(value, object);
+
+    // KJS retains the object as part of its wrapper (see Bindings::CInstance)
+    NPN_RetainObject(object);
+
+    _NPN_RegisterObject(object, root);
+
+    // Maintain a weak pointer for v8 so we can cleanup the object.
+    v8::Persistent<v8::Object> weakRef = v8::Persistent<v8::Object>::New(value);
+    staticNpobjectMap.set(object, weakRef);
+
+    return value;
+}
+
+void ForgetV8ObjectForNPObject(NPObject* object)
+{
+    if (staticNpobjectMap.contains(object)) {
+        v8::HandleScope scope;
+        v8::Persistent<v8::Object> handle(staticNpobjectMap.get(object));
+        WebCore::V8Proxy::SetDOMWrapper(handle, WebCore::V8ClassIndex::NPOBJECT, NULL);
+        staticNpobjectMap.forget(object);
+        NPN_ReleaseObject(object);
+    }
+}
diff --git a/V8Binding/binding/V8NPObject.h b/V8Binding/binding/V8NPObject.h
new file mode 100644
index 0000000..04cbff1
--- /dev/null
+++ b/V8Binding/binding/V8NPObject.h
@@ -0,0 +1,57 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef v8_npobject_h
+#define v8_npobject_h
+
+#include <v8.h>
+#if PLATFORM(CHROMIUM)
+#include "third_party/npapi/bindings/npruntime.h"
+#else
+#include "bridge/npruntime.h"  // use WebCore version
+#endif
+
+// These functions can be replaced by normal JS operation.
+// Getters
+v8::Handle<v8::Value> NPObjectNamedPropertyGetter(v8::Local<v8::String> name,
+                                                  const v8::AccessorInfo& info);
+v8::Handle<v8::Value> NPObjectIndexedPropertyGetter(uint32_t index,
+                                                    const v8::AccessorInfo& info);
+v8::Handle<v8::Value> NPObjectGetNamedProperty(v8::Local<v8::Object> self,
+                                               v8::Local<v8::String> name);
+v8::Handle<v8::Value> NPObjectGetIndexedProperty(v8::Local<v8::Object> self,
+                                                 uint32_t index);
+
+// Setters
+v8::Handle<v8::Value> NPObjectNamedPropertySetter(v8::Local<v8::String> name,
+                                                  v8::Local<v8::Value> value,
+                                                  const v8::AccessorInfo& info);
+v8::Handle<v8::Value> NPObjectIndexedPropertySetter(uint32_t index,
+                                                    const v8::AccessorInfo& info);
+v8::Handle<v8::Value> NPObjectSetNamedProperty(v8::Local<v8::Object> self,
+                                               v8::Local<v8::String> name,
+                                               v8::Local<v8::Value> value);
+v8::Handle<v8::Value> NPObjectSetIndexedProperty(v8::Local<v8::Object> self,
+                                                 uint32_t index,
+                                                 v8::Local<v8::Value> value);
+
+v8::Handle<v8::Value> NPObjectInvokeDefaultHandler(const v8::Arguments& args);
+
+// Get a wrapper for a NPObject.
+// If the object is already wrapped, the pre-existing wrapper
+// will be returned.
+// If the object is not wrapped, wrap it, and give V8 a weak
+// reference to the wrapper which will cleanup when there are
+// no more JS references to the object.
+v8::Local<v8::Object> CreateV8ObjectForNPObject(NPObject* object, NPObject *root);
+
+// Tell V8 to forcibly remove an object.
+// This is used at plugin teardown so that the caller can
+// aggressively unload the plugin library.  After calling this
+// function, the persistent handle to the wrapper will be
+// gone, and the wrapped NPObject will be removed so that
+// it cannot be referred to.
+void ForgetV8ObjectForNPObject(NPObject*object);
+
+#endif // v8_npobject_h
diff --git a/V8Binding/binding/V8NPUtils.cpp b/V8Binding/binding/V8NPUtils.cpp
new file mode 100644
index 0000000..04e6ede
--- /dev/null
+++ b/V8Binding/binding/V8NPUtils.cpp
@@ -0,0 +1,124 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+// 
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "config.h"
+
+#include "V8NPUtils.h"
+
+#include "DOMWindow.h"
+#include "Frame.h"
+#include "PlatformString.h"
+#undef LOG
+
+#include "npruntime_priv.h"
+#include "NPV8Object.h"
+#include "V8NPObject.h"
+#include "v8_proxy.h"
+
+void convertV8ObjectToNPVariant(v8::Local<v8::Value> object, NPObject *owner, NPVariant* result)
+{
+    VOID_TO_NPVARIANT(*result);
+
+    // It is really the caller's responsibility to deal with the empty handle
+    // case because there could be different actions to take in different
+    // contexts.
+    ASSERT(!object.IsEmpty());
+
+    if (object.IsEmpty())
+        return;
+
+    if (object->IsInt32())
+        INT32_TO_NPVARIANT(object->NumberValue(), *result);  
+    else if (object->IsNumber())
+        DOUBLE_TO_NPVARIANT(object->NumberValue(), *result);
+    else if (object->IsBoolean())
+        BOOLEAN_TO_NPVARIANT(object->BooleanValue(), *result);
+    else if (object->IsNull())
+        NULL_TO_NPVARIANT(*result);
+    else if (object->IsUndefined())
+        VOID_TO_NPVARIANT(*result);
+    else if (object->IsString()) {
+        v8::String::Utf8Value utf8(object);
+        char* utf8_chars = strdup(*utf8);
+        STRINGN_TO_NPVARIANT(utf8_chars, utf8.length(), *result);
+    } else if (object->IsObject()) {
+        WebCore::DOMWindow* window = WebCore::V8Proxy::retrieveWindow();
+        NPObject* npobject = npCreateV8ScriptObject(0, v8::Handle<v8::Object>::Cast(object), window);
+        if (npobject)
+            _NPN_RegisterObject(npobject, owner);
+        OBJECT_TO_NPVARIANT(npobject, *result);
+    }
+}
+
+
+v8::Handle<v8::Value> convertNPVariantToV8Object(const NPVariant* variant, NPObject* npobject)
+{
+    NPVariantType type = variant->type;
+
+    if (type == NPVariantType_Int32)
+        return v8::Integer::New(NPVARIANT_TO_INT32(*variant));
+    if (type == NPVariantType_Double)
+        return v8::Number::New(NPVARIANT_TO_DOUBLE(*variant));
+    if (type == NPVariantType_Bool)
+        return NPVARIANT_TO_BOOLEAN(*variant) ? v8::True() : v8::False();
+    if (type == NPVariantType_Null)
+        return v8::Null();
+    if (type == NPVariantType_Void)
+        return v8::Undefined();
+    if (type == NPVariantType_String) {
+        NPString src = NPVARIANT_TO_STRING(*variant);
+        return v8::String::New(src.UTF8Characters, src.UTF8Length);
+    }
+    if (type == NPVariantType_Object) {
+        NPObject* obj = NPVARIANT_TO_OBJECT(*variant);
+        if (obj->_class == npScriptObjectClass)
+            return reinterpret_cast<V8NPObject*>(obj)->v8Object;
+        return CreateV8ObjectForNPObject(obj, npobject);
+    }
+    return v8::Undefined();
+}
+
+// Helper function to create an NPN String Identifier from a v8 string.
+NPIdentifier getStringIdentifier(v8::Handle<v8::String> str)
+{
+    const int kStackBufSize = 100;
+
+    int bufLen = str->Length() + 1;
+    if (bufLen <= kStackBufSize) {
+        // Use local stack buffer to avoid heap allocations for small strings.
+        // Here we should only use the stack space for stack_buf when it's used,
+        // not when we use the heap.
+        char stackBuf[kStackBufSize];
+        str->WriteAscii(stackBuf);
+        return NPN_GetStringIdentifier(stackBuf);
+    }
+
+    v8::String::AsciiValue ascii(str);
+    return NPN_GetStringIdentifier(*ascii);
+}
diff --git a/V8Binding/binding/V8NPUtils.h b/V8Binding/binding/V8NPUtils.h
new file mode 100644
index 0000000..2e07e66
--- /dev/null
+++ b/V8Binding/binding/V8NPUtils.h
@@ -0,0 +1,31 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef v8_np_utils_h
+#define v8_np_utils_h
+
+#include <v8.h>
+#if PLATFORM(CHROMIUM)
+#include "third_party/npapi/bindings/npruntime.h"
+#else
+#include "bridge/npruntime.h"  // use WebCore version
+#endif
+
+namespace WebCore {
+    class Frame;
+}
+
+// Convert a V8 Value of any type (string, bool, object, etc) to a NPVariant.
+void convertV8ObjectToNPVariant(v8::Local<v8::Value> object, NPObject *owner, NPVariant* result);
+
+// Convert a NPVariant (string, bool, object, etc) back to a V8 Value.
+// The owner object is the NPObject which relates to the object, if the object
+// is an Object.  The created NPObject will be tied to the lifetime of the
+// owner.
+v8::Handle<v8::Value> convertNPVariantToV8Object(const NPVariant* value, NPObject* owner);
+
+// Helper function to create an NPN String Identifier from a v8 string.
+NPIdentifier getStringIdentifier(v8::Handle<v8::String> str);
+
+#endif // v8_np_utils_h
diff --git a/V8Binding/binding/V8SVGPODTypeWrapper.h b/V8Binding/binding/V8SVGPODTypeWrapper.h
new file mode 100644
index 0000000..79553c2
--- /dev/null
+++ b/V8Binding/binding/V8SVGPODTypeWrapper.h
@@ -0,0 +1,363 @@
+/*
+ * Copyright (C) 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
+ * Copyright (C) 2008 Apple Inc. All rights reserved.
+ * Copyright (C) 2008 The Chromium Authors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef V8SVGPODTypeWrapper_h
+#define V8SVGPODTypeWrapper_h
+
+#if ENABLE(SVG)
+
+#include "config.h"
+#include "SVGElement.h"
+#include "SVGList.h"
+#include <wtf/Assertions.h>
+#include <wtf/RefCounted.h>
+#include <wtf/HashMap.h>
+
+namespace WebCore {
+
+template<typename PODType>
+class V8SVGPODTypeWrapper : public RefCounted<V8SVGPODTypeWrapper<PODType> > {
+public:
+    V8SVGPODTypeWrapper() { }
+    virtual ~V8SVGPODTypeWrapper() { }
+    virtual operator PODType() = 0;
+    virtual void commitChange(PODType, SVGElement*) = 0;
+};
+
+template<typename PODType>
+class V8SVGPODTypeWrapperCreatorForList : public V8SVGPODTypeWrapper<PODType>
+{
+public:
+    typedef PODType (SVGPODListItem<PODType>::*GetterMethod)() const;
+    typedef void (SVGPODListItem<PODType>::*SetterMethod)(PODType);
+
+    V8SVGPODTypeWrapperCreatorForList(SVGPODListItem<PODType>* creator, const QualifiedName& attributeName)
+        : m_creator(creator)
+        , m_getter(&SVGPODListItem<PODType>::value)
+        , m_setter(&SVGPODListItem<PODType>::setValue)
+        , m_associatedAttributeName(attributeName)
+    {
+        ASSERT(m_creator);
+        ASSERT(m_getter);
+        ASSERT(m_setter);
+    }
+
+    virtual ~V8SVGPODTypeWrapperCreatorForList() { }
+
+    // Getter wrapper
+    virtual operator PODType() { return (m_creator.get()->*m_getter)(); }
+
+    // Setter wrapper
+    virtual void commitChange(PODType type, SVGElement* context)
+    {
+        if (!m_setter)
+            return;
+
+        (m_creator.get()->*m_setter)(type);
+
+        if (context)
+            context->svgAttributeChanged(m_associatedAttributeName);
+    }
+
+private:
+    // Update callbacks
+    RefPtr<SVGPODListItem<PODType> > m_creator;
+    GetterMethod m_getter;
+    SetterMethod m_setter;
+    const QualifiedName& m_associatedAttributeName;
+};
+
+template<typename PODType>
+class V8SVGStaticPODTypeWrapper : public V8SVGPODTypeWrapper<PODType>
+{
+public:
+    V8SVGStaticPODTypeWrapper(PODType type)
+        : m_podType(type)
+    { }
+
+    virtual ~V8SVGStaticPODTypeWrapper() { }
+
+    // Getter wrapper
+    virtual operator PODType() { return m_podType; }
+
+    // Setter wrapper
+    virtual void commitChange(PODType type, SVGElement*)
+    {
+        m_podType = type;
+    }
+
+private:
+    PODType m_podType;
+};
+
+template<typename PODType, typename ParentTypeArg>
+class V8SVGStaticPODTypeWrapperWithPODTypeParent : public V8SVGStaticPODTypeWrapper<PODType> {
+public:
+    typedef V8SVGPODTypeWrapper<ParentTypeArg> ParentType;
+
+     V8SVGStaticPODTypeWrapperWithPODTypeParent(PODType type, ParentType* parent)
+        : V8SVGStaticPODTypeWrapper<PODType>(type)
+        , m_parentType(parent)
+    {
+    }
+
+    virtual void commitChange(PODType type, SVGElement* context)
+    {
+        V8SVGStaticPODTypeWrapper<PODType>::commitChange(type, context);
+        m_parentType->commitChange(ParentTypeArg(type), context);
+    }
+
+private:
+    RefPtr<ParentType> m_parentType;
+};
+
+template<typename PODType, typename ParentType>
+class V8SVGStaticPODTypeWrapperWithParent : public V8SVGPODTypeWrapper<PODType> {
+public:
+    typedef PODType (ParentType::*GetterMethod)() const;
+    typedef void (ParentType::*SetterMethod)(const PODType&);
+
+    V8SVGStaticPODTypeWrapperWithParent(ParentType* parent, GetterMethod getter, SetterMethod setter)
+        : m_parent(parent)
+        , m_getter(getter)
+        , m_setter(setter)
+    {
+        ASSERT(m_parent);
+        ASSERT(m_getter);
+        ASSERT(m_setter);
+    }
+
+    virtual operator PODType()
+    {
+        return (m_parent.get()->*m_getter)();
+    }
+
+    virtual void commitChange(PODType type, SVGElement* context)
+    {
+        (m_parent.get()->*m_setter)(type);
+    }
+
+private:
+    // Update callbacks
+    RefPtr<ParentType> m_parent;
+    GetterMethod m_getter;
+    SetterMethod m_setter;
+};
+
+template<typename PODType, typename PODTypeCreator>
+class V8SVGDynamicPODTypeWrapper : public V8SVGPODTypeWrapper<PODType>
+{
+public:
+    typedef PODType (PODTypeCreator::*GetterMethod)() const;
+    typedef void (PODTypeCreator::*SetterMethod)(PODType);
+    typedef void (*CacheRemovalCallback)(V8SVGPODTypeWrapper<PODType>*);
+
+    V8SVGDynamicPODTypeWrapper(PODTypeCreator* creator, GetterMethod getter, SetterMethod setter, CacheRemovalCallback cacheRemovalCallback)
+        : m_creator(creator)
+        , m_getter(getter)
+        , m_setter(setter)
+        , m_cacheRemovalCallback(cacheRemovalCallback)
+    {
+        ASSERT(creator);
+        ASSERT(getter);
+        ASSERT(setter);
+        ASSERT(cacheRemovalCallback);
+    }
+
+    virtual ~V8SVGDynamicPODTypeWrapper() {
+        ASSERT(m_cacheRemovalCallback);
+
+        (*m_cacheRemovalCallback)(this);
+    }
+
+    // Getter wrapper
+    virtual operator PODType() { return (m_creator.get()->*m_getter)(); }
+
+    // Setter wrapper
+    virtual void commitChange(PODType type, SVGElement* context)
+    {
+        (m_creator.get()->*m_setter)(type);
+
+        if (context)
+            context->svgAttributeChanged(m_creator->associatedAttributeName());
+    }
+
+private:
+    // Update callbacks
+    RefPtr<PODTypeCreator> m_creator;
+    GetterMethod m_getter;
+    SetterMethod m_setter;
+    CacheRemovalCallback m_cacheRemovalCallback;
+};
+
+// Caching facilities
+template<typename PODType, typename PODTypeCreator>
+struct PODTypeWrapperCacheInfo {
+    typedef PODType (PODTypeCreator::*GetterMethod)() const;
+    typedef void (PODTypeCreator::*SetterMethod)(PODType);
+
+    // Empty value
+    PODTypeWrapperCacheInfo()
+        : creator(0)
+        , getter(0)
+        , setter(0)
+    { }
+
+    // Deleted value
+    explicit PODTypeWrapperCacheInfo(WTF::HashTableDeletedValueType)
+        : creator(reinterpret_cast<PODTypeCreator*>(-1))
+        , getter(0)
+        , setter(0)
+    {
+    }
+    bool isHashTableDeletedValue() const
+    {
+        return creator == reinterpret_cast<PODTypeCreator*>(-1);
+    }
+
+    PODTypeWrapperCacheInfo(PODTypeCreator* _creator, GetterMethod _getter, SetterMethod _setter)
+        : creator(_creator)
+        , getter(_getter)
+        , setter(_setter)
+    {
+        ASSERT(creator);
+        ASSERT(getter);
+    }
+
+    bool operator==(const PODTypeWrapperCacheInfo& other) const
+    {
+        return creator == other.creator && getter == other.getter && setter == other.setter;
+    }
+
+    PODTypeCreator* creator;
+    GetterMethod getter;
+    SetterMethod setter;
+};
+
+template<typename PODType, typename PODTypeCreator>
+struct PODTypeWrapperCacheInfoHash {
+    static unsigned hash(const PODTypeWrapperCacheInfo<PODType, PODTypeCreator>& info)
+    {
+        unsigned creator = reinterpret_cast<unsigned>(info.creator);
+        unsigned getter = reinterpret_cast<unsigned>(*(void**)&info.getter);
+        unsigned setter = reinterpret_cast<unsigned>(*(void**)&info.setter);
+        return (creator * 13) + getter ^ (setter >> 2);
+    }
+
+    static bool equal(const PODTypeWrapperCacheInfo<PODType, PODTypeCreator>& a, const PODTypeWrapperCacheInfo<PODType, PODTypeCreator>& b)
+    {
+        return a == b;
+    }
+
+    static const bool safeToCompareToEmptyOrDeleted = true;
+};
+
+template<typename PODType, typename PODTypeCreator>
+struct PODTypeWrapperCacheInfoTraits : WTF::GenericHashTraits<PODTypeWrapperCacheInfo<PODType, PODTypeCreator> > {
+    typedef PODTypeWrapperCacheInfo<PODType, PODTypeCreator> CacheInfo;
+
+    static const bool emptyValueIsZero = true;
+    static const bool needsDestruction = false;
+
+    static const CacheInfo& emptyValue()
+    {
+        static CacheInfo key;
+        return key;
+    }
+
+    static void constructDeletedValue(CacheInfo& slot)
+    {
+        new (&slot) CacheInfo(WTF::HashTableDeletedValue);
+    }
+
+    static bool isDeletedValue(const CacheInfo& value)
+    {
+        return value.isHashTableDeletedValue();
+    }
+};
+
+template<typename PODType, typename PODTypeCreator>
+class V8SVGDynamicPODTypeWrapperCache
+{
+public:
+    typedef PODType (PODTypeCreator::*GetterMethod)() const;
+    typedef void (PODTypeCreator::*SetterMethod)(PODType);
+
+    typedef PODTypeWrapperCacheInfo<PODType, PODTypeCreator> CacheInfo;
+    typedef PODTypeWrapperCacheInfoHash<PODType, PODTypeCreator> CacheInfoHash;
+    typedef PODTypeWrapperCacheInfoTraits<PODType, PODTypeCreator> CacheInfoTraits;
+
+    typedef V8SVGPODTypeWrapper<PODType> WrapperBase;
+    typedef V8SVGDynamicPODTypeWrapper<PODType, PODTypeCreator> DynamicWrapper;
+
+    typedef HashMap<CacheInfo, DynamicWrapper*, CacheInfoHash, CacheInfoTraits> DynamicWrapperHashMap;
+    typedef typename DynamicWrapperHashMap::const_iterator DynamicWrapperHashMapIterator;
+
+    static DynamicWrapperHashMap& dynamicWrapperHashMap()
+    {
+        static DynamicWrapperHashMap _dynamicWrapperHashMap;
+        return _dynamicWrapperHashMap;
+    }
+
+    // Used for readwrite attributes only
+    static WrapperBase* lookupOrCreateWrapper(PODTypeCreator* creator, GetterMethod getter, SetterMethod setter)
+    {
+        DynamicWrapperHashMap& map(dynamicWrapperHashMap());
+        CacheInfo info(creator, getter, setter);
+
+        if (map.contains(info))
+            return map.get(info);
+
+        DynamicWrapper* wrapper = new V8SVGDynamicPODTypeWrapper<PODType, PODTypeCreator>(
+          creator, getter, setter, forgetWrapper);
+        map.set(info, wrapper);
+        return wrapper;
+    }
+
+    static void forgetWrapper(V8SVGPODTypeWrapper<PODType>* wrapper)
+    {
+        DynamicWrapperHashMap& map(dynamicWrapperHashMap());
+
+        DynamicWrapperHashMapIterator it = map.begin();
+        DynamicWrapperHashMapIterator end = map.end();
+
+        for (; it != end; ++it) {
+            if (it->second != wrapper)
+                continue;
+
+            // It's guaranteed that there's just one object we need to take care of.
+            map.remove(it->first);
+            break;
+        }
+    }
+};
+
+
+} // namespace WebCore
+
+#endif // ENABLE(SVG)
+#endif // V8SVGPODTypeWrapper_h
diff --git a/V8Binding/binding/V8Utilities.cpp b/V8Binding/binding/V8Utilities.cpp
new file mode 100644
index 0000000..8853506
--- /dev/null
+++ b/V8Binding/binding/V8Utilities.cpp
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "V8Utilities.h"
+
+#include <v8.h>
+
+#include "V8CustomBinding.h"
+#include "V8Proxy.h"
+
+#include <wtf/Assertions.h>
+#include "Frame.h"
+
+namespace WebCore {
+
+// Use an array to hold dependents. It works like a ref-counted scheme.
+// A value can be added more than once to the DOM object.
+void createHiddenDependency(v8::Local<v8::Object> object, v8::Local<v8::Value> value, int cacheIndex)
+{
+    v8::Local<v8::Value> cache = object->GetInternalField(cacheIndex);
+    if (cache->IsNull() || cache->IsUndefined()) {
+        cache = v8::Array::New();
+        object->SetInternalField(cacheIndex, cache);
+    }
+
+    v8::Local<v8::Array> cacheArray = v8::Local<v8::Array>::Cast(cache);
+    cacheArray->Set(v8::Integer::New(cacheArray->Length()), value);
+}
+
+void removeHiddenDependency(v8::Local<v8::Object> object, v8::Local<v8::Value> value, int cacheIndex)
+{
+    v8::Local<v8::Value> cache = object->GetInternalField(cacheIndex);
+    ASSERT(cache->IsArray());
+    v8::Local<v8::Array> cacheArray = v8::Local<v8::Array>::Cast(cache);
+    for (int i = cacheArray->Length() - 1; i >= 0; --i) {
+        v8::Local<v8::Value> cached = cacheArray->Get(v8::Integer::New(i));
+        if (cached->StrictEquals(value)) {
+            cacheArray->Delete(i);
+            return;
+        }
+    }
+
+    // We should only get here if we try to remove an event listener that was never added.
+    ASSERT_NOT_REACHED();
+}
+
+#if PLATFORM(ANDROID)
+  // The functions below are not needed on Android.
+#else
+bool processingUserGesture()
+{
+    Frame* frame = V8Proxy::retrieveFrameForEnteredContext();
+    return frame && frame->script()->processingUserGesture();
+}
+
+bool shouldAllowNavigation(Frame* frame)
+{
+    Frame* callingFrame = V8Proxy::retrieveFrameForCallingContext();
+    return callingFrame && callingFrame->loader()->shouldAllowNavigation(frame);
+}
+
+KURL completeURL(const String& relativeURL)
+{
+    // For histoical reasons, we need to complete the URL using the dynamic frame.
+    Frame* frame = V8Proxy::retrieveFrameForEnteredContext();
+    if (!frame)
+        return KURL();
+    return frame->loader()->completeURL(relativeURL);
+}
+
+void navigateIfAllowed(Frame* frame, const KURL& url, bool lockHistory, bool lockBackForwardList)
+{
+    Frame* callingFrame = V8Proxy::retrieveFrameForCallingContext();
+    if (!callingFrame)
+        return;
+
+    if (!protocolIsJavaScript(url) || ScriptController::isSafeScript(frame))
+        frame->loader()->scheduleLocationChange(url.string(), callingFrame->loader()->outgoingReferrer(), lockHistory, lockBackForwardList, processingUserGesture());
+}
+#endif // PLATFORM(ANDROID)
+
+} // namespace WebCore
diff --git a/V8Binding/binding/V8Utilities.h b/V8Binding/binding/V8Utilities.h
new file mode 100644
index 0000000..f4346f6
--- /dev/null
+++ b/V8Binding/binding/V8Utilities.h
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2006, 2007, 2008, 2009 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef V8Utilities_h
+#define V8Utilities_h
+
+// FIXME: Remove once chromium dependencies on v8_utility.h are removed.
+#define V8UTILITIES_DEFINED 1
+
+#include <v8.h>
+
+namespace WebCore {
+
+    class Frame;
+    class KURL;
+    class String;
+
+    // Use an array to hold dependents. It works like a ref-counted scheme. A value can be added more than once to the DOM object.
+    void createHiddenDependency(v8::Local<v8::Object>, v8::Local<v8::Value>, int cacheIndex);
+    void removeHiddenDependency(v8::Local<v8::Object>, v8::Local<v8::Value>, int cacheIndex);
+
+#if PLATFORM(ANDROID)
+    // The functions below are not needed (yet) on Android.
+#else
+    bool processingUserGesture();
+    bool shouldAllowNavigation(Frame*);
+    KURL completeURL(const String& relativeURL);
+    void navigateIfAllowed(Frame*, const KURL&, bool lockHistory, bool lockBackForwardList);
+#endif // PLATFORM(ANDROID)
+
+    class AllowAllocation {
+    public:
+        inline AllowAllocation()
+        {
+            m_previous = m_current;
+            m_current = true;
+        }
+
+        inline ~AllowAllocation()
+        {
+            m_current = m_previous;
+        }
+
+        static bool m_current;
+
+    private:
+        bool m_previous;
+    };
+
+    class SafeAllocation {
+     public:
+      static inline v8::Local<v8::Object> newInstance(v8::Handle<v8::Function>);
+      static inline v8::Local<v8::Object> newInstance(v8::Handle<v8::ObjectTemplate>);
+      static inline v8::Local<v8::Object> newInstance(v8::Handle<v8::Function>, int argc, v8::Handle<v8::Value> argv[]);
+
+      // FIXME: These NewInstance functions are here to ease upstreaming. Remove along with V8UTILITIES_DEFINED once chromium dependencies on v8_utility.h are removed.
+      static inline v8::Local<v8::Object> NewInstance(v8::Handle<v8::Function>);
+      static inline v8::Local<v8::Object> NewInstance(v8::Handle<v8::ObjectTemplate>);
+      static inline v8::Local<v8::Object> NewInstance(v8::Handle<v8::Function>, int argc, v8::Handle<v8::Value> argv[]);
+    };
+
+    v8::Local<v8::Object> SafeAllocation::newInstance(v8::Handle<v8::Function> function)
+    {
+        if (function.IsEmpty())
+            return v8::Local<v8::Object>();
+        AllowAllocation allow;
+        return function->NewInstance();
+    }
+
+    v8::Local<v8::Object> SafeAllocation::newInstance(v8::Handle<v8::ObjectTemplate> objectTemplate)
+    {
+        if (objectTemplate.IsEmpty())
+            return v8::Local<v8::Object>();
+        AllowAllocation allow;
+        return objectTemplate->NewInstance();
+    }
+
+    v8::Local<v8::Object> SafeAllocation::newInstance(v8::Handle<v8::Function> function, int argc, v8::Handle<v8::Value> argv[])
+    {
+        if (function.IsEmpty())
+            return v8::Local<v8::Object>();
+        AllowAllocation allow;
+        return function->NewInstance(argc, argv);
+    }
+
+    // FIXME: These NewInstance functions are here to ease upstreaming. Remove along with V8UTILITIES_DEFINED once chromium dependencies on v8_utility.h are removed.
+    v8::Local<v8::Object> SafeAllocation::NewInstance(v8::Handle<v8::Function> function)
+    {
+        return newInstance(function);
+    }
+
+    v8::Local<v8::Object> SafeAllocation::NewInstance(v8::Handle<v8::ObjectTemplate> objectTemplate)
+    {
+        return newInstance(objectTemplate);
+    }
+
+    v8::Local<v8::Object> SafeAllocation::NewInstance(v8::Handle<v8::Function> function, int argc, v8::Handle<v8::Value> argv[])
+    {
+        return newInstance(function, argc, argv);
+    }
+
+} // namespace WebCore
+
+#endif // V8Utilities_h
diff --git a/V8Binding/binding/V8WorkerContextCustom.cpp b/V8Binding/binding/V8WorkerContextCustom.cpp
new file mode 100644
index 0000000..e646bb5
--- /dev/null
+++ b/V8Binding/binding/V8WorkerContextCustom.cpp
@@ -0,0 +1,230 @@
+// Copyright (c) 2009, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "config.h"
+
+#if ENABLE(WORKERS)
+
+#include "v8_binding.h"
+#include "v8_custom.h"
+#include "v8_proxy.h"
+#include "WorkerContextExecutionProxy.h"
+
+#include "ExceptionCode.h"
+#include "MessagePort.h"
+#include "NotImplemented.h"
+#include "V8Document.h"
+#include "V8HTMLDocument.h"
+#include "V8WorkerContextEventListener.h"
+#include "WorkerContext.h"
+
+namespace WebCore {
+
+// TODO(mbelshe) - merge these with XHR's CreateHiddenXHRDependency
+
+// Use an array to hold dependents. It works like a ref-counted scheme.
+// A value can be added more than once to the xhr object.
+static void CreateHiddenDependency(v8::Local<v8::Object> object,
+                                   v8::Local<v8::Value> value) {
+  ASSERT(V8Proxy::GetDOMWrapperType(object) == V8ClassIndex::WORKERCONTEXT);
+  v8::Local<v8::Value> cache =
+      object->GetInternalField(V8Custom::kWorkerContextRequestCacheIndex);
+  if (cache->IsNull() || cache->IsUndefined()) {
+    cache = v8::Array::New();
+    object->SetInternalField(V8Custom::kWorkerContextRequestCacheIndex, cache);
+  }
+
+  v8::Local<v8::Array> cache_array = v8::Local<v8::Array>::Cast(cache);
+  cache_array->Set(v8::Integer::New(cache_array->Length()), value);
+}
+
+static void RemoveHiddenDependency(v8::Local<v8::Object> object,
+                                   v8::Local<v8::Value> value) {
+  ASSERT(V8Proxy::GetDOMWrapperType(object) == V8ClassIndex::WORKERCONTEXT);
+  v8::Local<v8::Value> cache =
+      object->GetInternalField(V8Custom::kWorkerContextRequestCacheIndex);
+  ASSERT(cache->IsArray());
+  v8::Local<v8::Array> cache_array = v8::Local<v8::Array>::Cast(cache);
+  for (int i = cache_array->Length() - 1; i >= 0; i--) {
+    v8::Local<v8::Value> cached = cache_array->Get(v8::Integer::New(i));
+    if (cached->StrictEquals(value)) {
+      cache_array->Delete(i);
+      return;
+    }
+  }
+
+  // We should only get here if we try to remove an event listener that was
+  // never added.
+}
+
+ACCESSOR_GETTER(WorkerContextSelf) {
+  INC_STATS(L"DOM.WorkerContext.self._get");
+  WorkerContext* imp = V8Proxy::ToNativeObject<WorkerContext>(
+      V8ClassIndex::WORKERCONTEXT, info.Holder());
+  return WorkerContextExecutionProxy::WorkerContextToV8Object(imp);
+}
+
+ACCESSOR_GETTER(WorkerContextOnmessage) {
+  INC_STATS(L"DOM.WorkerContext.onmessage._get");
+  WorkerContext* imp = V8Proxy::ToNativeObject<WorkerContext>(
+      V8ClassIndex::WORKERCONTEXT, info.Holder());
+  if (imp->onmessage()) {
+    V8WorkerContextEventListener* listener =
+        static_cast<V8WorkerContextEventListener*>(imp->onmessage());
+    v8::Local<v8::Object> v8_listener = listener->getListenerObject();
+    return v8_listener;
+  }
+  return v8::Undefined();
+}
+
+ACCESSOR_SETTER(WorkerContextOnmessage) {
+  INC_STATS(L"DOM.WorkerContext.onmessage._set");
+  WorkerContext* imp = V8Proxy::ToNativeObject<WorkerContext>(
+      V8ClassIndex::WORKERCONTEXT, info.Holder());
+  V8WorkerContextEventListener* old_listener =
+      static_cast<V8WorkerContextEventListener*>(imp->onmessage());
+  if (value->IsNull()) {
+    if (imp->onmessage()) {
+      v8::Local<v8::Object> old_v8_listener = old_listener->getListenerObject();
+      RemoveHiddenDependency(info.Holder(), old_v8_listener);
+    }
+
+    // Clear the listener
+    imp->setOnmessage(0);
+
+  } else {
+    RefPtr<V8EventListener> listener =
+        imp->script()->proxy()->FindOrCreateEventListener(
+            v8::Local<v8::Object>::Cast(value), false, false);
+    if (listener) {
+      if (old_listener) {
+        v8::Local<v8::Object> old_v8_listener =
+            old_listener->getListenerObject();
+        RemoveHiddenDependency(info.Holder(), old_v8_listener);
+      }
+
+      imp->setOnmessage(listener);
+      CreateHiddenDependency(info.Holder(), value);
+    }
+  }
+}
+
+v8::Handle<v8::Value> SetTimeoutOrInterval(const v8::Arguments& args,
+                                           bool singleShot) {
+  WorkerContext* imp = V8Proxy::ToNativeObject<WorkerContext>(
+      V8ClassIndex::WORKERCONTEXT, args.Holder());
+
+  int delay = ToInt32(args[1]);
+
+  notImplemented();
+
+  return v8::Undefined();
+}
+
+v8::Handle<v8::Value> ClearTimeoutOrInterval(const v8::Arguments& args) {
+  WorkerContext* imp = V8Proxy::ToNativeObject<WorkerContext>(
+      V8ClassIndex::WORKERCONTEXT, args.Holder());
+
+  bool ok = false;
+  int tid = ToInt32(args[0], ok);
+  if (ok) {
+    imp->removeTimeout(tid);
+  }
+
+  return v8::Undefined();
+}
+
+CALLBACK_FUNC_DECL(WorkerContextImportScripts) {
+  INC_STATS(L"DOM.WorkerContext.importScripts()");
+  notImplemented();
+  return v8::Undefined();
+}
+
+CALLBACK_FUNC_DECL(WorkerContextSetTimeout) {
+  INC_STATS(L"DOM.WorkerContext.setTimeout()");
+  return SetTimeoutOrInterval(args, true);
+}
+
+CALLBACK_FUNC_DECL(WorkerContextClearTimeout) {
+  INC_STATS(L"DOM.WorkerContext.clearTimeout()");
+  return ClearTimeoutOrInterval(args);
+}
+
+CALLBACK_FUNC_DECL(WorkerContextSetInterval) {
+  INC_STATS(L"DOM.WorkerContext.setInterval()");
+  return SetTimeoutOrInterval(args, false);
+}
+
+CALLBACK_FUNC_DECL(WorkerContextClearInterval) {
+  INC_STATS(L"DOM.WorkerContext.clearInterval()");
+  return ClearTimeoutOrInterval(args);
+}
+
+CALLBACK_FUNC_DECL(WorkerContextAddEventListener) {
+  INC_STATS(L"DOM.WorkerContext.addEventListener()");
+  WorkerContext* imp = V8Proxy::ToNativeObject<WorkerContext>(
+      V8ClassIndex::WORKERCONTEXT, args.Holder());
+
+  RefPtr<V8EventListener> listener =
+      imp->script()->proxy()->FindOrCreateEventListener(
+          v8::Local<v8::Object>::Cast(args[1]), false, false);
+
+  if (listener) {
+    String type = ToWebCoreString(args[0]);
+    bool useCapture = args[2]->BooleanValue();
+    imp->addEventListener(type, listener, useCapture);
+
+    CreateHiddenDependency(args.Holder(), args[1]);
+  }
+  return v8::Undefined();
+}
+
+CALLBACK_FUNC_DECL(WorkerContextRemoveEventListener) {
+  INC_STATS(L"DOM.WorkerContext.removeEventListener()");
+  WorkerContext* imp = V8Proxy::ToNativeObject<WorkerContext>(
+      V8ClassIndex::WORKERCONTEXT, args.Holder());
+  WorkerContextExecutionProxy* proxy = imp->script()->proxy();
+
+  RefPtr<V8EventListener> listener = proxy->FindOrCreateEventListener(
+      v8::Local<v8::Object>::Cast(args[1]), false, true);
+
+  if (listener) {
+    String type = ToWebCoreString(args[0]);
+    bool useCapture = args[2]->BooleanValue();
+    imp->removeEventListener(type, listener.get(), useCapture);
+
+    RemoveHiddenDependency(args.Holder(), args[1]);
+  }
+
+  return v8::Undefined();
+}
+
+}  // namespace WebCore
+
+#endif  // ENABLE(WORKERS)
diff --git a/V8Binding/binding/V8WorkerCustom.cpp b/V8Binding/binding/V8WorkerCustom.cpp
new file mode 100644
index 0000000..1f7e5fe
--- /dev/null
+++ b/V8Binding/binding/V8WorkerCustom.cpp
@@ -0,0 +1,282 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "config.h"
+
+#if ENABLE(WORKERS)
+
+#include "v8_binding.h"
+#include "v8_custom.h"
+#include "v8_proxy.h"
+
+#include "ExceptionCode.h"
+#include "Frame.h"
+#include "MessagePort.h"
+#include "V8Document.h"
+#include "V8HTMLDocument.h"
+#include "V8ObjectEventListener.h"
+#include "Worker.h"
+#include "WorkerContextExecutionProxy.h"
+
+namespace WebCore {
+
+CALLBACK_FUNC_DECL(WorkerConstructor) {
+  INC_STATS(L"DOM.Worker.Constructor");
+
+  if (!WorkerContextExecutionProxy::isWebWorkersEnabled()) {
+    V8Proxy::ThrowError(V8Proxy::SYNTAX_ERROR, "Worker is not enabled.");
+    return v8::Undefined();
+  }
+
+  if (!args.IsConstructCall()) {
+    V8Proxy::ThrowError(V8Proxy::TYPE_ERROR,
+        "DOM object constructor cannot be called as a function.");
+    return v8::Undefined();
+  }
+
+  if (args.Length() == 0) {
+    V8Proxy::ThrowError(V8Proxy::SYNTAX_ERROR, "Not enough arguments");
+    return v8::Undefined();
+  }
+
+  v8::TryCatch try_catch;
+  v8::Handle<v8::String> script_url = args[0]->ToString();
+  if (try_catch.HasCaught()) {
+    v8::ThrowException(try_catch.Exception());
+    return v8::Undefined();
+  }
+  if (script_url.IsEmpty()) {
+    return v8::Undefined();
+  }
+
+  // Get the document.
+  Frame* frame = V8Proxy::retrieveFrame();
+  if (!frame)
+    return v8::Undefined();
+  Document* document = frame->document();
+
+  // Create the worker object.
+  // Note: it's OK to let this RefPtr go out of scope because we also call
+  // SetDOMWrapper(), which effectively holds a reference to obj.
+  ExceptionCode ec = 0;
+  RefPtr<Worker> obj = Worker::create(
+      ToWebCoreString(script_url), document, ec);
+
+  // Setup the standard wrapper object internal fields.
+  v8::Handle<v8::Object> wrapper_object = args.Holder();
+  V8Proxy::SetDOMWrapper(
+      wrapper_object, V8ClassIndex::WORKER, obj.get());
+
+  obj->ref();
+  V8Proxy::SetJSWrapperForActiveDOMObject(
+      obj.get(), v8::Persistent<v8::Object>::New(wrapper_object));
+
+  return wrapper_object;
+}
+
+// TODO(mbelshe) - merge these with XHR's CreateHiddenXHRDependency
+
+// Use an array to hold dependents. It works like a ref-counted scheme.
+// A value can be added more than once to the xhr object.
+static void CreateHiddenDependency(v8::Local<v8::Object> object,
+                                   v8::Local<v8::Value> value) {
+  ASSERT(V8Proxy::GetDOMWrapperType(object) ==
+      V8ClassIndex::WORKER);
+  v8::Local<v8::Value> cache =
+      object->GetInternalField(V8Custom::kWorkerRequestCacheIndex);
+  if (cache->IsNull() || cache->IsUndefined()) {
+    cache = v8::Array::New();
+    object->SetInternalField(V8Custom::kWorkerRequestCacheIndex, cache);
+  }
+
+  v8::Local<v8::Array> cache_array = v8::Local<v8::Array>::Cast(cache);
+  cache_array->Set(v8::Integer::New(cache_array->Length()), value);
+}
+
+static void RemoveHiddenDependency(v8::Local<v8::Object> object,
+                                   v8::Local<v8::Value> value) {
+  ASSERT(V8Proxy::GetDOMWrapperType(object) == V8ClassIndex::WORKER);
+  v8::Local<v8::Value> cache =
+      object->GetInternalField(V8Custom::kWorkerRequestCacheIndex);
+  ASSERT(cache->IsArray());
+  v8::Local<v8::Array> cache_array = v8::Local<v8::Array>::Cast(cache);
+  for (int i = cache_array->Length() - 1; i >= 0; i--) {
+    v8::Local<v8::Value> cached = cache_array->Get(v8::Integer::New(i));
+    if (cached->StrictEquals(value)) {
+      cache_array->Delete(i);
+      return;
+    }
+  }
+
+  // We should only get here if we try to remove an event listener that was
+  // never added.
+}
+
+ACCESSOR_GETTER(WorkerOnmessage) {
+  INC_STATS(L"DOM.Worker.onmessage._get");
+  Worker* imp = V8Proxy::ToNativeObject<Worker>(
+      V8ClassIndex::WORKER, info.Holder());
+  if (imp->onmessage()) {
+    V8ObjectEventListener* listener =
+        static_cast<V8ObjectEventListener*>(imp->onmessage());
+    v8::Local<v8::Object> v8_listener = listener->getListenerObject();
+    return v8_listener;
+  }
+  return v8::Undefined();
+}
+
+ACCESSOR_SETTER(WorkerOnmessage) {
+  INC_STATS(L"DOM.Worker.onmessage._set");
+  Worker* imp = V8Proxy::ToNativeObject<Worker>(
+      V8ClassIndex::WORKER, info.Holder());
+  V8ObjectEventListener* old_listener =
+      static_cast<V8ObjectEventListener*>(imp->onmessage());
+  if (value->IsNull()) {
+    if (old_listener) {
+      v8::Local<v8::Object> old_v8_listener = old_listener->getListenerObject();
+      RemoveHiddenDependency(info.Holder(), old_v8_listener);
+    }
+
+    // Clear the listener
+    imp->setOnmessage(0);
+
+  } else {
+    V8Proxy* proxy = V8Proxy::retrieve(imp->scriptExecutionContext());
+    if (!proxy)
+      return;
+
+    RefPtr<EventListener> listener =
+      proxy->FindOrCreateObjectEventListener(value, false);
+    if (listener) {
+      if (old_listener) {
+        v8::Local<v8::Object> old_v8_listener =
+            old_listener->getListenerObject();
+        RemoveHiddenDependency(info.Holder(), old_v8_listener);
+      }
+
+      imp->setOnmessage(listener);
+      CreateHiddenDependency(info.Holder(), value);
+    }
+  }
+}
+
+ACCESSOR_GETTER(WorkerOnerror) {
+  INC_STATS(L"DOM.Worker.onerror._get");
+  Worker* imp = V8Proxy::ToNativeObject<Worker>(
+      V8ClassIndex::WORKER, info.Holder());
+  if (imp->onerror()) {
+    V8ObjectEventListener* listener =
+        static_cast<V8ObjectEventListener*>(imp->onerror());
+    v8::Local<v8::Object> v8_listener = listener->getListenerObject();
+    return v8_listener;
+  }
+  return v8::Undefined();
+}
+
+ACCESSOR_SETTER(WorkerOnerror) {
+  INC_STATS(L"DOM.Worker.onerror._set");
+  Worker* imp = V8Proxy::ToNativeObject<Worker>(
+      V8ClassIndex::WORKER, info.Holder());
+  V8ObjectEventListener* old_listener =
+      static_cast<V8ObjectEventListener*>(imp->onerror());
+  if (value->IsNull()) {
+    if (old_listener) {
+      v8::Local<v8::Object> old_v8_listener =
+          old_listener->getListenerObject();
+      RemoveHiddenDependency(info.Holder(), old_v8_listener);
+    }
+
+    // Clear the listener
+    imp->setOnerror(0);
+  } else {
+    V8Proxy* proxy = V8Proxy::retrieve(imp->scriptExecutionContext());
+    if (!proxy)
+      return;
+
+    RefPtr<EventListener> listener =
+      proxy->FindOrCreateObjectEventListener(value, false);
+    if (listener) {
+      if (old_listener) {
+        v8::Local<v8::Object> old_v8_listener = old_listener->getListenerObject();
+        RemoveHiddenDependency(info.Holder(), old_v8_listener);
+      }
+
+      imp->setOnerror(listener);
+      CreateHiddenDependency(info.Holder(), value);
+    }
+  }
+}
+
+CALLBACK_FUNC_DECL(WorkerAddEventListener) {
+  INC_STATS(L"DOM.Worker.addEventListener()");
+  Worker* imp = V8Proxy::ToNativeObject<Worker>(
+      V8ClassIndex::WORKER, args.Holder());
+
+  V8Proxy* proxy = V8Proxy::retrieve(imp->scriptExecutionContext());
+  if (!proxy)
+    return v8::Undefined();
+
+  RefPtr<EventListener> listener =
+      proxy->FindOrCreateObjectEventListener(args[1], false);
+  if (listener) {
+    String type = ToWebCoreString(args[0]);
+    bool useCapture = args[2]->BooleanValue();
+    imp->addEventListener(type, listener, useCapture);
+
+    CreateHiddenDependency(args.Holder(), args[1]);
+  }
+  return v8::Undefined();
+}
+
+CALLBACK_FUNC_DECL(WorkerRemoveEventListener) {
+  INC_STATS(L"DOM.Worker.removeEventListener()");
+  Worker* imp = V8Proxy::ToNativeObject<Worker>(
+      V8ClassIndex::WORKER, args.Holder());
+
+  V8Proxy* proxy = V8Proxy::retrieve(imp->scriptExecutionContext());
+  if (!proxy)
+    return v8::Undefined();  // probably leaked
+
+  RefPtr<EventListener> listener =
+    proxy->FindObjectEventListener(args[1], false);
+
+  if (listener) {
+    String type = ToWebCoreString(args[0]);
+    bool useCapture = args[2]->BooleanValue();
+    imp->removeEventListener(type, listener.get(), useCapture);
+
+    RemoveHiddenDependency(args.Holder(), args[1]);
+  }
+
+  return v8::Undefined();
+}
+
+}  // namespace WebCore
+
+#endif  // ENABLE(WORKERS)
diff --git a/V8Binding/binding/dom_wrapper_map.h b/V8Binding/binding/dom_wrapper_map.h
new file mode 100644
index 0000000..e95ff88
--- /dev/null
+++ b/V8Binding/binding/dom_wrapper_map.h
@@ -0,0 +1,72 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BINDINGS_V8_DOM_WRAPPER_MAP
+#define BINDINGS_V8_DOM_WRAPPER_MAP
+
+#include <v8.h>
+#include <wtf/HashMap.h>
+
+// A table of wrappers with weak pointers.
+// This table allows us to avoid track wrapped objects for debugging
+// and for ensuring that we don't double wrap the same object.
+template<class KeyType, class ValueType>
+class WeakReferenceMap {
+ public:
+  WeakReferenceMap(v8::WeakReferenceCallback callback) :
+       weak_reference_callback_(callback) { }
+#ifndef NDEBUG
+  virtual ~WeakReferenceMap() {
+    if (map_.size() > 0) {
+      fprintf(stderr, "Leak %d JS wrappers.\n", map_.size());
+      // Print out details.
+    }
+  }
+#endif
+
+  // Get the JS wrapper object of an object.
+  virtual v8::Persistent<ValueType> get(KeyType* obj) {
+    ValueType* wrapper = map_.get(obj);
+    return wrapper ? v8::Persistent<ValueType>(wrapper)
+      : v8::Persistent<ValueType>();
+  }
+
+  virtual void set(KeyType* obj, v8::Persistent<ValueType> wrapper) {
+    ASSERT(!map_.contains(obj));
+    wrapper.MakeWeak(obj, weak_reference_callback_);
+    map_.set(obj, *wrapper);
+  }
+
+  virtual void forget(KeyType* obj) {
+    ASSERT(obj);
+    ValueType* wrapper = map_.take(obj);
+    if (wrapper) {
+      v8::Persistent<ValueType> handle(wrapper);
+      handle.Dispose();
+      handle.Clear();
+    }
+  }
+
+  bool contains(KeyType* obj) {
+    return map_.contains(obj);
+  }
+
+  HashMap<KeyType*, ValueType*>& impl() {
+    return map_;
+  }
+
+ protected:
+  HashMap<KeyType*, ValueType*> map_;
+  v8::WeakReferenceCallback weak_reference_callback_;
+};
+
+
+template <class KeyType>
+class DOMWrapperMap : public WeakReferenceMap<KeyType, v8::Object> {
+ public:
+  DOMWrapperMap(v8::WeakReferenceCallback callback) :
+       WeakReferenceMap<KeyType, v8::Object>(callback) { }
+};
+
+#endif  // BINDINGS_V8_DOM_WRAPPER_MAP
diff --git a/V8Binding/binding/npruntime.cpp b/V8Binding/binding/npruntime.cpp
new file mode 100644
index 0000000..f32c63d
--- /dev/null
+++ b/V8Binding/binding/npruntime.cpp
@@ -0,0 +1,436 @@
+/*
+ * Copyright (C) 2004, 2006 Apple Computer, Inc.  All rights reserved.
+ * Copyright (C) 2007-2009 Google, Inc.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include "NPV8Object.h"
+#include "npruntime_priv.h"
+#include "V8NPObject.h"
+
+#include <wtf/HashMap.h>
+#include <wtf/HashSet.h>
+#include <wtf/Assertions.h>
+
+// FIXME: Consider removing locks if we're singlethreaded already.
+// The static initializer here should work okay, but we want to avoid
+// static initialization in general.
+//
+// Commenting out the locks to avoid dependencies on chrome for now.
+// Need a platform abstraction which we can use.
+// static Lock StringIdentifierMapLock;
+
+namespace {
+
+// We use StringKey here as the key-type to avoid a string copy to
+// construct the map key and for faster comparisons than strcmp.
+class StringKey {
+  public:
+    explicit StringKey(const char* str)
+        : m_string(str), m_length(strlen(str)) {}
+    StringKey() : m_string(0), m_length(0) {}
+    explicit StringKey(WTF::HashTableDeletedValueType)
+        : m_string(hashTableDeletedValue()), m_length(0) { }
+
+    StringKey& operator=(const StringKey& other) {
+        this->m_string = other.m_string;
+        this->m_length = other.m_length;
+        return *this;
+    }
+
+    bool isHashTableDeletedValue() const {
+        return m_string == hashTableDeletedValue();
+    }
+
+    const char* m_string;
+    size_t m_length;
+  private:
+    const char* hashTableDeletedValue() const {
+        return reinterpret_cast<const char*>(-1);
+    }
+};
+
+inline bool operator==(const StringKey& x, const StringKey& y) {
+    if (x.m_length != y.m_length) {
+        return false;
+    } else if (x.m_string == y.m_string) {
+        return true;
+    } else {
+        ASSERT(!x.isHashTableDeletedValue() && !y.isHashTableDeletedValue());
+        return memcmp(x.m_string, y.m_string, y.m_length) == 0;
+    }
+}
+
+// Implement WTF::DefaultHash<StringKey>::Hash interface.
+struct StringKeyHash {
+    static unsigned hash(const StringKey& key) {
+        // Compute string hash.
+        unsigned hash = 0;
+        size_t len = key.m_length;
+        const char* str = key.m_string;
+        for (size_t i = 0; i < len; i++) {
+            char c = str[i];
+            hash += c;
+            hash += (hash << 10);
+            hash ^= (hash >> 6);
+        }
+        hash += (hash << 3);
+        hash ^= (hash >> 11);
+        hash += (hash << 15);
+        if (hash == 0) {
+            hash = 27;
+        }
+        return hash;
+    }
+
+    static bool equal(const StringKey& x, const StringKey& y) {
+        return x == y;
+    }
+
+    static const bool safeToCompareToEmptyOrDeleted = true;
+};
+
+}  // namespace
+
+// Implement HashTraits<StringKey>
+struct StringKeyHashTraits : WTF::GenericHashTraits<StringKey> {
+    static void constructDeletedValue(StringKey& slot) {
+        new (&slot) StringKey(WTF::HashTableDeletedValue);
+    }
+    static bool isDeletedValue(const StringKey& value) {
+        return value.isHashTableDeletedValue();
+    }
+};
+
+typedef WTF::HashMap<StringKey, PrivateIdentifier*, \
+        StringKeyHash, StringKeyHashTraits> StringIdentifierMap;
+
+static StringIdentifierMap* getStringIdentifierMap() {
+    static StringIdentifierMap* stringIdentifierMap = 0;
+    if (!stringIdentifierMap)
+        stringIdentifierMap = new StringIdentifierMap();
+    return stringIdentifierMap;
+}
+
+// FIXME: Consider removing locks if we're singlethreaded already.
+// static Lock IntIdentifierMapLock;
+
+typedef WTF::HashMap<int, PrivateIdentifier*> IntIdentifierMap;
+
+static IntIdentifierMap* getIntIdentifierMap() {
+    static IntIdentifierMap* intIdentifierMap = 0;
+    if (!intIdentifierMap)
+        intIdentifierMap = new IntIdentifierMap();
+    return intIdentifierMap;
+}
+
+extern "C" {
+
+NPIdentifier NPN_GetStringIdentifier(const NPUTF8* name) {
+    ASSERT(name);
+
+    if (name) {
+        // AutoLock safeLock(StringIdentifierMapLock);
+
+        StringKey key(name);
+        StringIdentifierMap* identMap = getStringIdentifierMap();
+        StringIdentifierMap::iterator iter = identMap->find(key);
+        if (iter != identMap->end())
+            return static_cast<NPIdentifier>(iter->second);
+
+        size_t nameLen = key.m_length;
+
+        // We never release identifiers, so this dictionary will grow.
+        PrivateIdentifier* identifier = static_cast<PrivateIdentifier*>(
+            malloc(sizeof(PrivateIdentifier) + nameLen + 1));
+        char* nameStorage = reinterpret_cast<char*>(identifier + 1);
+        memcpy(nameStorage, name, nameLen + 1);
+        identifier->isString = true;
+        identifier->value.string = reinterpret_cast<NPUTF8*>(nameStorage);
+        key.m_string = nameStorage;
+        identMap->set(key, identifier);
+        return (NPIdentifier)identifier;
+    }
+
+    return 0;
+}
+
+void NPN_GetStringIdentifiers(const NPUTF8** names, int32_t nameCount,
+                              NPIdentifier* identifiers) {
+    ASSERT(names);
+    ASSERT(identifiers);
+
+    if (names && identifiers)
+        for (int i = 0; i < nameCount; i++)
+            identifiers[i] = NPN_GetStringIdentifier(names[i]);
+}
+
+NPIdentifier NPN_GetIntIdentifier(int32_t intid) {
+    // AutoLock safeLock(IntIdentifierMapLock);
+    // Special case for -1 and 0, both cannot be used as key in HashMap.
+    if (intid == 0 || intid == -1) {
+        static PrivateIdentifier* minusOneOrZeroIds[2];
+        PrivateIdentifier* id = minusOneOrZeroIds[intid + 1];
+        if (!id) {
+            id = reinterpret_cast<PrivateIdentifier*>(
+                malloc(sizeof(PrivateIdentifier)));
+            id->isString = false;
+            id->value.number = intid;
+            minusOneOrZeroIds[intid + 1] = id;
+        }
+        return (NPIdentifier)id;
+    }
+
+    IntIdentifierMap* identMap = getIntIdentifierMap();
+    IntIdentifierMap::iterator iter = identMap->find(intid);
+    if (iter != identMap->end())
+        return static_cast<NPIdentifier>(iter->second);
+
+    // We never release identifiers, so this dictionary will grow.
+    PrivateIdentifier* identifier = reinterpret_cast<PrivateIdentifier*>(
+        malloc(sizeof(PrivateIdentifier)));
+    identifier->isString = false;
+    identifier->value.number = intid;
+    identMap->set(intid, identifier);
+    return (NPIdentifier)identifier;
+}
+
+bool NPN_IdentifierIsString(NPIdentifier identifier) {
+    PrivateIdentifier* i = reinterpret_cast<PrivateIdentifier*>(identifier);
+    return i->isString;
+}
+
+NPUTF8 *NPN_UTF8FromIdentifier(NPIdentifier identifier) {
+    PrivateIdentifier* i = reinterpret_cast<PrivateIdentifier*>(identifier);
+    if (!i->isString || !i->value.string)
+        return NULL;
+
+    return (NPUTF8 *)strdup(i->value.string);
+}
+
+int32_t NPN_IntFromIdentifier(NPIdentifier identifier) {
+    PrivateIdentifier* i = reinterpret_cast<PrivateIdentifier*>(identifier);
+    if (i->isString)
+        return 0;
+    return i->value.number;
+}
+
+void NPN_ReleaseVariantValue(NPVariant* variant) {
+    ASSERT(variant);
+
+    if (variant->type == NPVariantType_Object) {
+        NPN_ReleaseObject(variant->value.objectValue);
+        variant->value.objectValue = 0;
+    } else if (variant->type == NPVariantType_String) {
+        free((void*)variant->value.stringValue.UTF8Characters);
+        variant->value.stringValue.UTF8Characters = 0;
+        variant->value.stringValue.UTF8Length = 0;
+    }
+
+    variant->type = NPVariantType_Void;
+}
+
+NPObject *NPN_CreateObject(NPP npp, NPClass* aClass) {
+    ASSERT(aClass);
+
+    if (aClass) {
+        NPObject* obj;
+        if (aClass->allocate != NULL)
+            obj = aClass->allocate(npp, aClass);
+        else
+            obj = reinterpret_cast<NPObject*>(malloc(sizeof(NPObject)));
+
+        obj->_class = aClass;
+        obj->referenceCount = 1;
+        return obj;
+    }
+
+    return 0;
+}
+
+NPObject* NPN_RetainObject(NPObject* obj) {
+    ASSERT(obj);
+    ASSERT(obj->referenceCount > 0);
+
+    if (obj)
+        obj->referenceCount++;
+
+    return obj;
+}
+
+// _NPN_DeallocateObject actually deletes the object.  Technically,
+// callers should use NPN_ReleaseObject.  Webkit exposes this function
+// to kill objects which plugins may not have properly released.
+void _NPN_DeallocateObject(NPObject *obj) {
+    ASSERT(obj);
+    ASSERT(obj->referenceCount >= 0);
+
+    if (obj) {
+        // NPObjects that remain in pure C++ may never have wrappers.
+        // Hence, if it's not already alive, don't unregister it.
+        // If it is alive, unregister it as the *last* thing we do
+        // so that it can do as much cleanup as possible on its own.
+        if (_NPN_IsAlive(obj))
+            _NPN_UnregisterObject(obj);
+
+        obj->referenceCount = -1;
+        if (obj->_class->deallocate)
+            obj->_class->deallocate(obj);
+        else
+            free(obj);
+    }
+}
+
+void NPN_ReleaseObject(NPObject* obj) {
+    ASSERT(obj);
+    ASSERT(obj->referenceCount >= 1);
+
+    if (obj && obj->referenceCount >= 1) {
+        if (--obj->referenceCount == 0)
+            _NPN_DeallocateObject(obj);
+    }
+}
+
+void _NPN_InitializeVariantWithStringCopy(NPVariant* variant,
+                                          const NPString* value) {
+    variant->type = NPVariantType_String;
+    variant->value.stringValue.UTF8Length = value->UTF8Length;
+    variant->value.stringValue.UTF8Characters =
+        reinterpret_cast<NPUTF8*>(malloc(sizeof(NPUTF8) * value->UTF8Length));
+    memcpy((void*)variant->value.stringValue.UTF8Characters,
+           value->UTF8Characters,
+           sizeof(NPUTF8) * value->UTF8Length);
+}
+
+
+// NPN_Registry
+//
+// The registry is designed for quick lookup of NPObjects.
+// JS needs to be able to quickly lookup a given NPObject to determine
+// if it is alive or not.
+// The browser needs to be able to quickly lookup all NPObjects which are
+// "owned" by an object.
+//
+// The g_live_objects is a hash table of all live objects to their owner
+// objects.  Presence in this table is used primarily to determine if
+// objects are live or not.
+//
+// The g_root_objects is a hash table of root objects to a set of
+// objects that should be deactivated in sync with the root.  A
+// root is defined as a top-level owner object.  This is used on
+// Frame teardown to deactivate all objects associated
+// with a particular plugin.
+
+typedef WTF::HashSet<NPObject*> NPObjectSet;
+typedef WTF::HashMap<NPObject*, NPObject*> NPObjectMap;
+typedef WTF::HashMap<NPObject*, NPObjectSet*> NPRootObjectMap;
+
+// A map of live NPObjects with pointers to their Roots.
+NPObjectMap g_live_objects;
+
+// A map of the root objects and the list of NPObjects
+// associated with that object.
+NPRootObjectMap g_root_objects;
+
+void _NPN_RegisterObject(NPObject* obj, NPObject* owner) {
+    ASSERT(obj);
+
+    // Check if already registered.
+    if (g_live_objects.find(obj) != g_live_objects.end()) {
+      return;
+    }
+
+    if (!owner) {
+      // Registering a new owner object.
+      ASSERT(g_root_objects.find(obj) == g_root_objects.end());
+      g_root_objects.set(obj, new NPObjectSet());
+    } else {
+      // Always associate this object with it's top-most parent.
+      // Since we always flatten, we only have to look up one level.
+      NPObjectMap::iterator owner_entry = g_live_objects.find(owner);
+      NPObject* parent = NULL;
+      if (g_live_objects.end() != owner_entry)
+          parent = owner_entry->second;
+
+      if (parent) {
+          owner = parent;
+      }
+      ASSERT(g_root_objects.find(obj) == g_root_objects.end());
+      if (g_root_objects.find(owner) != g_root_objects.end())
+          g_root_objects.get(owner)->add(obj);
+    }
+
+    ASSERT(g_live_objects.find(obj) == g_live_objects.end());
+    g_live_objects.set(obj, owner);
+}
+
+void _NPN_UnregisterObject(NPObject* obj) {
+    ASSERT(obj);
+    ASSERT(g_live_objects.find(obj) != g_live_objects.end());
+
+    NPObject* owner = NULL;
+    if (g_live_objects.find(obj) != g_live_objects.end())
+      owner = g_live_objects.find(obj)->second;
+
+    if (owner == NULL) {
+        // Unregistering a owner object; also unregister it's descendants.
+        ASSERT(g_root_objects.find(obj) != g_root_objects.end());
+        NPObjectSet* set = g_root_objects.get(obj);
+        while (set->size() > 0) {
+#ifndef NDEBUG
+            int size = set->size();
+#endif
+            NPObject* sub_object = *(set->begin());
+            // The sub-object should not be a owner!
+            ASSERT(g_root_objects.find(sub_object) == g_root_objects.end());
+
+            // First, unregister the object.
+            set->remove(sub_object);
+            g_live_objects.remove(sub_object);
+
+            // Remove the JS references to the object.
+            ForgetV8ObjectForNPObject(sub_object);
+
+            ASSERT(set->size() < size);
+        }
+        delete set;
+        g_root_objects.remove(obj);
+    } else {
+        NPRootObjectMap::iterator owner_entry = g_root_objects.find(owner);
+        if (owner_entry != g_root_objects.end()) {
+          NPObjectSet* list = owner_entry->second;
+          ASSERT(list->find(obj) != list->end());
+          list->remove(obj);
+        }
+    }
+    g_live_objects.remove(obj);
+    ForgetV8ObjectForNPObject(obj);
+}
+
+bool _NPN_IsAlive(NPObject* obj) {
+    return g_live_objects.find(obj) != g_live_objects.end();
+}
+
+}  // extern "C"
diff --git a/V8Binding/binding/npruntime_impl.h b/V8Binding/binding/npruntime_impl.h
new file mode 100644
index 0000000..31db922
--- /dev/null
+++ b/V8Binding/binding/npruntime_impl.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2008, 2009, Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef npruntime_impl_h
+#define npruntime_impl_h
+
+#if PLATFORM(CHROMIUM)
+#include "bindings/npruntime.h"
+#else
+#include "npruntime.h"  // use V8Binding/npapi version
+#endif
+
+// This file exists to support WebCore, which expects to be able to call upon
+// portions of the NPRuntime implementation.
+
+// A simple mapping for now.  FIXME We should probably just adopt the
+// underscore prefix as our naming convention too.
+
+#define _NPN_ReleaseVariantValue NPN_ReleaseVariantValue
+#define _NPN_GetStringIdentifier NPN_GetStringIdentifier
+#define _NPN_GetStringIdentifiers NPN_GetStringIdentifiers
+#define _NPN_GetIntIdentifier NPN_GetIntIdentifier
+#define _NPN_IdentifierIsString NPN_IdentifierIsString
+#define _NPN_UTF8FromIdentifier NPN_UTF8FromIdentifier
+#define _NPN_IntFromIdentifier NPN_IntFromIdentifier
+#define _NPN_CreateObject NPN_CreateObject
+#define _NPN_RetainObject NPN_RetainObject
+#define _NPN_ReleaseObject NPN_ReleaseObject
+#define _NPN_DeallocateObject NPN_DeallocateObject
+#define _NPN_Invoke NPN_Invoke
+#define _NPN_InvokeDefault NPN_InvokeDefault
+#define _NPN_Evaluate NPN_Evaluate
+#define _NPN_GetProperty NPN_GetProperty
+#define _NPN_SetProperty NPN_SetProperty
+#define _NPN_RemoveProperty NPN_RemoveProperty
+#define _NPN_HasProperty NPN_HasProperty
+#define _NPN_HasMethod NPN_HasMethod
+#define _NPN_SetException NPN_SetException
+#define _NPN_Enumerate NPN_Enumerate
+#define _NPN_Construct NPN_Construct
+
+#endif
diff --git a/V8Binding/binding/npruntime_internal.h b/V8Binding/binding/npruntime_internal.h
new file mode 100644
index 0000000..75bf2b0
--- /dev/null
+++ b/V8Binding/binding/npruntime_internal.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2007 Collabora, Ltd.  All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * This is a internal include header for npapi.h
+ *
+ * Some of the #defines which are in X11 headers conflict with type and enum
+ * names in JavaScriptCore and WebCore
+ * This header #undefs those defines to fix the conflicts
+ * If you need to include npapi.h or npruntime.h when building on X11,
+ * include this file instead of the actual npapi.h or npruntime.h
+ */
+
+#include "npapi.h"
+#include "npruntime.h"
+#include "npfunctions.h"
+
+#ifdef XP_UNIX
+    #include <X11/Xresource.h>
+
+    #undef None
+    #undef Above
+    #undef Below
+    #undef Auto
+    #undef Complex
+    #undef Status
+#endif
diff --git a/V8Binding/binding/npruntime_priv.h b/V8Binding/binding/npruntime_priv.h
new file mode 100644
index 0000000..8b1ddec
--- /dev/null
+++ b/V8Binding/binding/npruntime_priv.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2003, 2006 Apple Computer, Inc.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef NP_RUNTIME_PRIV_H_
+#define NP_RUNTIME_PRIV_H_
+
+#if PLATFORM(CHROMIUM)
+#include "third_party/npapi/bindings/npruntime.h"
+#else
+#include "bridge/npruntime.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+    _NPN_InitializeVariantWithStringCopy() will copy string data.  The string data
+    will be deallocated by calls to NPReleaseVariantValue().
+*/
+void _NPN_InitializeVariantWithStringCopy(NPVariant*, const NPString*);
+void _NPN_DeallocateObject(NPObject *obj);
+
+// The following routines allow the browser to aggressively cleanup NPObjects
+// on a per plugin basis.  All NPObjects used through the NPRuntime API should
+// be "registered" while they are alive.  After an object has been
+// deleted, it is possible for Javascript to have a reference to that object
+// which has not yet been garbage collected.  Javascript access to NPObjects
+// will reference this registry to determine if the object is accessible or
+// not.
+
+// Windows introduces an additional complication for objects created by the
+// plugin.  Plugins load inside of a DLL.  Each DLL has it's own heap.  If
+// the browser unloads the plugin DLL, all objects created within the DLL's
+// heap instantly become invalid.  Normally, when WebKit drops the reference
+// on the top-level plugin object, it tells the plugin manager that the
+// plugin can be destroyed, which can unload the DLL.  So, we must eliminate
+// all pointers to any object ever created by the plugin.
+
+// We generally associate NPObjects with an owner.  The owner of an NPObject
+// is an NPObject which, when destroyed, also destroys all objects it owns.
+// For example, if an NPAPI plugin creates 10 sub-NPObjects, all 11 objects
+// (the NPAPI plugin + its 10 sub-objects) should become inaccessible
+// simultaneously.
+
+// The ownership hierarchy is flat, and not a tree.  Imagine the following
+// object creation:
+//     PluginObject
+//          |
+//          +-- Creates -----> Object1
+//                                |
+//                                +-- Creates -----> Object2
+//
+// PluginObject will be the "owner" for both Object1 and Object2.
+
+// Register an NPObject with the runtime.  If the owner is NULL, the
+// object is treated as an owning object.  If owner is not NULL,
+// this object will be registered as owned by owner's top-level owner.
+void _NPN_RegisterObject(NPObject* obj, NPObject* owner);
+
+// Unregister an NPObject with the runtime.  If obj is an owning
+// object, this call will also unregister all of the owned objects.
+void _NPN_UnregisterObject(NPObject* obj);
+
+// Check to see if an object is registered with the runtime.
+// Return true if registered, false otherwise.
+bool _NPN_IsAlive(NPObject* obj);
+
+#ifdef __cplusplus
+}  /* end extern "C" */
+#endif
+
+#endif
diff --git a/V8Binding/binding/v8_binding.cpp b/V8Binding/binding/v8_binding.cpp
new file mode 100644
index 0000000..3a36fc5
--- /dev/null
+++ b/V8Binding/binding/v8_binding.cpp
@@ -0,0 +1,120 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "v8_binding.h"
+
+#include "AtomicString.h"
+#include "CString.h"
+#include "MathExtras.h"
+#include "PlatformString.h"
+#include "StringBuffer.h"
+
+#include <v8.h>
+
+namespace WebCore {
+
+// WebCoreStringResource is a helper class for v8ExternalString. It is used
+// to manage the life-cycle of the underlying buffer of the external string.
+class WebCoreStringResource: public v8::String::ExternalStringResource {
+ public:
+  explicit WebCoreStringResource(const String& str)
+      : impl_(str.impl()) { }
+
+  virtual ~WebCoreStringResource() {}
+
+  const uint16_t* data() const {
+    return reinterpret_cast<const uint16_t*>(impl_.characters());
+  }
+
+  size_t length() const { return impl_.length(); }
+
+  String webcore_string() { return impl_; }
+
+ private:
+  // A shallow copy of the string.
+  // Keeps the string buffer alive until the V8 engine garbage collects it.
+  String impl_;
+};
+
+String v8StringToWebCoreString(v8::Handle<v8::String> v8_str) {
+  if (v8_str->IsExternal()) {
+    WebCoreStringResource* str_resource = static_cast<WebCoreStringResource*>(
+        v8_str->GetExternalStringResource());
+    return str_resource->webcore_string();
+  }
+
+  int length = v8_str->Length();
+  if (length == 0) {
+    // Avoid trying to morph empty strings, as they do not have enough room to
+    // contain the external reference.
+    return "";
+  }
+
+  // Copy the characters from the v8::String into a WebCore::String and allocate
+  // an external resource which will be attached to the v8::String.
+  String result;
+  const int kStringSizeToCopy = 256;
+  if (length < kStringSizeToCopy) {
+    uint16_t buffer[kStringSizeToCopy];
+    v8_str->Write(buffer, 0, length);
+    result = StringImpl::create(reinterpret_cast<UChar*>(buffer), length);
+  } else {
+    StringBuffer buf(length);
+    v8_str->Write(reinterpret_cast<uint16_t*>(buf.characters()), 0, length);
+    result = String::adopt(buf);
+  }
+
+//
+//  TODO(mbelshe): Disable string morphing because it causes mystery
+//     perf regressions on intl1 and intl2 page cyclers.  It works fine
+//     on machines other than the buildbots.
+//
+//  WebCoreStringResource* resource = new WebCoreStringResource(result);
+//  if (!v8_str->MakeExternal(resource)) {
+//    // In case of a failure delete the external resource as it was not used.
+//    delete resource;
+//  }
+  return result;
+}
+
+
+String v8ValueToWebCoreString(v8::Handle<v8::Value> obj) {
+  v8::Handle<v8::String> v8_str;
+  if (obj->IsString()) {
+    v8_str = v8::Handle<v8::String>::Cast(obj);
+  } else {
+    v8::TryCatch block;
+    v8_str = obj->ToString();
+    if (v8_str.IsEmpty())
+      return "";
+  }
+  return v8StringToWebCoreString(v8_str);
+}
+
+
+AtomicString v8StringToAtomicWebCoreString(v8::Handle<v8::String> v8_str) {
+  String str = v8StringToWebCoreString(v8_str);
+  return AtomicString(str);
+}
+
+
+AtomicString v8ValueToAtomicWebCoreString(v8::Handle<v8::Value> v8_str) {
+  String str = v8ValueToWebCoreString(v8_str);
+  return AtomicString(str);
+}
+
+
+v8::Handle<v8::String> v8String(const String& str) {
+  if (!str.length())
+    return v8::String::Empty();
+  return v8::String::NewExternal(new WebCoreStringResource(str));	
+}
+
+v8::Local<v8::String> v8ExternalString(const String& str) {
+  if (!str.length())
+    return v8::String::Empty();
+  return v8::String::NewExternal(new WebCoreStringResource(str));	
+}
+
+}  // namespace WebCore
diff --git a/V8Binding/binding/v8_binding.h b/V8Binding/binding/v8_binding.h
new file mode 100644
index 0000000..8300dd7
--- /dev/null
+++ b/V8Binding/binding/v8_binding.h
@@ -0,0 +1,130 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_BINDING_H__
+#define V8_BINDING_H__
+
+#include "config.h"
+
+#include "MathExtras.h"
+#include "PlatformString.h"
+
+#include <v8.h>
+
+namespace WebCore {
+
+// The string returned by this function is still owned by the argument
+// and will be deallocated when the argument is deallocated.
+inline const uint16_t* FromWebCoreString(const String& str) {
+  return reinterpret_cast<const uint16_t*>(str.characters());
+}
+
+// Convert v8 types to a WebCore::String. If the V8 string is not already
+// an external string then it is transformed into an external string at this
+// point to avoid repeated conversions.
+String v8StringToWebCoreString(v8::Handle<v8::String> obj);
+String v8ValueToWebCoreString(v8::Handle<v8::Value> obj);
+
+// TODO(mbelshe): drop this in favor of the type specific
+//    v8ValueToWebCoreString when we rework the code generation.
+inline String ToWebCoreString(v8::Handle<v8::Value> obj) {
+    return v8ValueToWebCoreString(obj);
+}
+
+// Convert v8 types to a WebCore::AtomicString.
+AtomicString v8StringToAtomicWebCoreString(v8::Handle<v8::String> obj);
+AtomicString v8ValueToAtomicWebCoreString(v8::Handle<v8::Value> obj);
+
+inline String valueToStringWithNullCheck(v8::Handle<v8::Value> value) {
+  if (value->IsNull()) return String();
+  return ToWebCoreString(value);
+}
+
+inline String valueToStringWithNullOrUndefinedCheck(
+    v8::Handle<v8::Value> value) {
+  if (value->IsNull() || value->IsUndefined()) return String();
+  return ToWebCoreString(value);
+}
+
+// Convert a value to a 32-bit integer.  The conversion fails if the
+// value cannot be converted to an integer or converts to nan or to an
+// infinity.
+// FIXME: Rename to toInt32() once V8 bindings migration is complete.
+inline int ToInt32(v8::Handle<v8::Value> value, bool& ok) {
+  ok = true;
+
+  // Fast case.  The value is already a 32-bit integer.
+  if (value->IsInt32()) {
+    return value->Int32Value();
+  }
+
+  // Can the value be converted to a number?
+  v8::Local<v8::Number> number_object = value->ToNumber();
+  if (number_object.IsEmpty()) {
+    ok = false;
+    return 0;
+  }
+
+  // Does the value convert to nan or to an infinity?
+  double number_value = number_object->Value();
+  if (isnan(number_value) || isinf(number_value)) {
+    ok = false;
+    return 0;
+  }
+
+  // Can the value be converted to a 32-bit integer?
+  v8::Local<v8::Int32> int_value = value->ToInt32();
+  if (int_value.IsEmpty()) {
+    ok = false;
+    return 0;
+  }
+
+  // Return the result of the int32 conversion.
+  return int_value->Value();
+}
+
+// Convert a value to a 32-bit integer assuming the conversion cannot fail.
+// FIXME: Rename to toInt32() once V8 bindings migration is complete.
+inline int ToInt32(v8::Handle<v8::Value> value) {
+  bool ok;
+  return ToInt32(value, ok);
+}
+
+inline String ToString(const String& string) {
+  return string;
+}
+
+// Convert a string to a V8 string.
+v8::Handle<v8::String> v8String(const String& str);
+
+inline v8::Handle<v8::String> v8UndetectableString(const String& str) {
+  return v8::String::NewUndetectable(FromWebCoreString(str), str.length());
+}
+
+// Return a V8 external string that shares the underlying buffer with the given
+// WebCore string. The reference counting mechanism is used to keep the
+// underlying buffer alive while the string is still live in the V8 engine.
+v8::Local<v8::String> v8ExternalString(const String& str);
+
+inline v8::Handle<v8::Value> v8StringOrNull(const String& str) {
+  return str.isNull()
+    ? v8::Handle<v8::Value>(v8::Null())
+    : v8::Handle<v8::Value>(v8String(str));
+}
+
+inline v8::Handle<v8::Value> v8StringOrUndefined(const String& str) {
+  return str.isNull()
+    ? v8::Handle<v8::Value>(v8::Undefined())
+    : v8::Handle<v8::Value>(v8String(str));
+}
+
+inline v8::Handle<v8::Value> v8StringOrFalse(const String& str) {
+  return str.isNull()
+    ? v8::Handle<v8::Value>(v8::False())
+    : v8::Handle<v8::Value>(v8String(str));
+}
+
+}  // namespace WebCore
+
+#endif  // V8_BINDING_H__
diff --git a/V8Binding/binding/v8_custom.cpp b/V8Binding/binding/v8_custom.cpp
new file mode 100644
index 0000000..855e192
--- /dev/null
+++ b/V8Binding/binding/v8_custom.cpp
@@ -0,0 +1,1102 @@
+/*
+ *  Copyright (C) 2000 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2001 Peter Kelly (pmk@post.com)
+ *  Copyright (C) 2004-2006 Apple Computer, Inc.
+ *  Copyright (C) 2006 James G. Speth (speth@end.com)
+ *  Copyright (C) 2006 Samuel Weinig (sam@webkit.org)
+ *  Copyright 2007, 2008 Google Inc. All Rights Reserved.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "config.h"
+
+#include <Assertions.h>
+#include <wtf/ASCIICType.h>
+
+#include "v8_proxy.h"
+#include "v8_binding.h"
+#include "V8NPObject.h"
+#include "v8_custom.h"
+
+#include "V8Attr.h"
+#include "V8CanvasGradient.h"
+#include "V8CanvasPattern.h"
+#include "V8CustomEventListener.h"
+#include "V8Document.h"
+#include "V8DOMWindow.h"
+#include "V8HTMLCanvasElement.h"
+#include "V8HTMLDocument.h"
+#include "V8HTMLImageElement.h"
+#include "V8HTMLOptionElement.h"
+#include "V8Node.h"
+
+#if ENABLE(XPATH)
+#include "V8XPathNSResolver.h"
+#include "V8XPathResult.h"
+#endif
+
+#include "Base64.h"
+#include "CanvasGradient.h"
+#include "CanvasPattern.h"
+#include "CanvasRenderingContext2D.h"
+#include "CanvasStyle.h"
+#include "Clipboard.h"
+#include "ClipboardEvent.h"
+#include "Console.h"
+#include "DOMParser.h"
+#include "DOMStringList.h"
+#include "DOMTimer.h"
+#include "DOMWindow.h"
+#include "Document.h"
+#include "DocumentFragment.h"
+#include "Event.h"
+#include "EventListener.h"
+#include "EventTarget.h"
+#include "ExceptionCode.h"
+#include "FloatRect.h"
+#include "Frame.h"
+#include "FrameLoader.h"
+#include "FrameTree.h"
+#include "HTMLBodyElement.h"
+#include "HTMLCanvasElement.h"
+#include "HTMLDocument.h"
+#include "HTMLEmbedElement.h"
+#include "HTMLFormElement.h"
+#include "HTMLFrameElement.h"
+#include "HTMLFrameElementBase.h"
+#include "HTMLFrameSetElement.h"
+#include "HTMLIFrameElement.h"
+#include "HTMLImageElement.h"
+#include "HTMLInputElement.h"
+#include "HTMLNames.h"
+#include "HTMLOptionElement.h"
+#include "HTMLOptionsCollection.h"
+#include "HTMLSelectElement.h"
+#include "History.h"
+#include "JSXPathNSResolver.h"
+#include "JSDOMBinding.h"
+#include "KURL.h"
+#include "Location.h"
+#include "MessageChannel.h"
+#include "MessagePort.h"
+#include "MouseEvent.h"
+#include "NodeIterator.h"
+#include "NodeList.h"
+#include "RGBColor.h"
+#include "RenderPartObject.h"
+#include "RenderWidget.h"
+#include "ScheduledAction.h"
+#include "ScriptState.h"
+#include "ScriptController.h"
+#include "ScriptSourceCode.h"
+#include "SecurityOrigin.h"
+#include "StyleSheetList.h"
+#include "TreeWalker.h"
+#include "WebKitCSSMatrix.h"
+#include "WebKitPoint.h"
+#include "XMLSerializer.h"
+#include "XPathEvaluator.h"
+#include "XPathResult.h"
+#include "XSLTProcessor.h"
+
+#if ENABLE(SVG)
+#include "V8SVGPODTypeWrapper.h"
+#include "SVGElementInstance.h"
+#include "SVGException.h"
+#include "SVGPathSeg.h"
+#endif
+
+#include "Navigator.h"
+
+namespace WebCore {
+
+CALLBACK_FUNC_DECL(WebKitPointConstructor) {
+  INC_STATS("DOM.WebKitPoint.Constructor");
+  return V8Proxy::ConstructDOMObject<V8ClassIndex::WEBKITPOINT,
+                                     WebKitPoint>(args);
+}
+
+// DOMImplementation is a singleton in WebCore.  If we use our normal
+// mapping from DOM objects to V8 wrappers, the same wrapper will be
+// shared for all frames in the same process.  This is a major
+// security problem.  Therefore, we generate a DOMImplementation
+// wrapper per document and store it in an internal field of the
+// document.  Since the DOMImplementation object is a singleton, we do
+// not have to do anything to keep the DOMImplementation object alive
+// for the lifetime of the wrapper.
+ACCESSOR_GETTER(DocumentImplementation) {
+  ASSERT(info.Holder()->InternalFieldCount() >=
+         kDocumentMinimumInternalFieldCount);
+  // Check if the internal field already contains a wrapper.
+  v8::Local<v8::Value> implementation =
+      info.Holder()->GetInternalField(kDocumentImplementationIndex);
+  if (!implementation->IsUndefined()) {
+    return implementation;
+  }
+  // Generate a wrapper.
+  Document* doc = V8Proxy::DOMWrapperToNative<Document>(info.Holder());
+  v8::Handle<v8::Value> wrapper =
+      V8Proxy::DOMImplementationToV8Object(doc->implementation());
+  // Store the wrapper in the internal field.
+  info.Holder()->SetInternalField(kDocumentImplementationIndex, wrapper);
+
+  return wrapper;
+}
+
+
+ACCESSOR_GETTER(DocumentLocation) {
+  Document* imp = V8Proxy::DOMWrapperToNative<Document>(info.Holder());
+  if (!imp->frame())
+    return v8::Null();
+
+  DOMWindow* window = imp->frame()->domWindow();
+  return V8Proxy::ToV8Object(V8ClassIndex::LOCATION, window->location());
+}
+
+
+ACCESSOR_SETTER(DocumentLocation) {
+  Document* imp = V8Proxy::DOMWrapperToNative<Document>(info.Holder());
+  if (!imp->frame())
+    return;
+
+  DOMWindow* window = imp->frame()->domWindow();
+  // WindowSetLocation does security checks.  // XXXMB- verify!
+  WindowSetLocation(window, ToWebCoreString(value));
+}
+
+
+INDEXED_PROPERTY_GETTER(HTMLFormElement) {
+  INC_STATS("DOM.HTMLFormElement.IndexedPropertyGetter");
+  HTMLFormElement* form =
+      V8Proxy::DOMWrapperToNode<HTMLFormElement>(info.Holder());
+
+  RefPtr<Node> result = form->elements()->item(index);
+  if (!result) return v8::Handle<v8::Value>();
+  return V8Proxy::NodeToV8Object(result.get());
+}
+
+
+INDEXED_PROPERTY_GETTER(HTMLOptionsCollection) {
+  INC_STATS("DOM.HTMLOptionsCollection.IndexedPropertyGetter");
+  HTMLOptionsCollection* collection =
+      V8Proxy::ToNativeObject<HTMLOptionsCollection>(
+          V8ClassIndex::HTMLOPTIONSCOLLECTION, info.Holder());
+
+  RefPtr<Node> result = collection->item(index);
+  if (!result) return v8::Handle<v8::Value>();
+
+  return V8Proxy::NodeToV8Object(result.get());
+}
+
+static v8::Handle<v8::Value> OptionsCollectionSetter(uint32_t index,
+    v8::Handle<v8::Value> value, HTMLSelectElement* base) {
+  if (value->IsNull() || value->IsUndefined()) {
+    base->remove(index);
+    return value;
+  }
+
+  ExceptionCode ec = 0;
+
+  // Check that the value is an HTMLOptionElement.  If not, throw a
+  // TYPE_MISMATCH_ERR DOMException.
+  if (!V8HTMLOptionElement::HasInstance(value)) {
+    V8Proxy::SetDOMException(TYPE_MISMATCH_ERR);
+    return value;
+  }
+
+  HTMLOptionElement* element =
+      V8Proxy::DOMWrapperToNode<HTMLOptionElement>(
+          v8::Handle<v8::Object>::Cast(value));
+  base->setOption(index, element, ec);
+
+  V8Proxy::SetDOMException(ec);
+  return value;
+}
+
+
+INDEXED_PROPERTY_SETTER(HTMLOptionsCollection) {
+  INC_STATS("DOM.HTMLOptionsCollection.IndexedPropertySetter");
+  HTMLOptionsCollection* collection =
+      V8Proxy::ToNativeObject<HTMLOptionsCollection>(
+          V8ClassIndex::HTMLOPTIONSCOLLECTION, info.Holder());
+  HTMLSelectElement* base = static_cast<HTMLSelectElement*>(collection->base());
+  return OptionsCollectionSetter(index, value, base);
+}
+
+
+INDEXED_PROPERTY_SETTER(HTMLSelectElementCollection) {
+  INC_STATS("DOM.HTMLSelectElementCollection.IndexedPropertySetter");
+  HTMLSelectElement* select =
+      V8Proxy::DOMWrapperToNode<HTMLSelectElement>(info.Holder());
+  return OptionsCollectionSetter(index, value, select);
+}
+
+// CanvasRenderingContext2D ----------------------------------------------------
+
+// Helper macro for converting v8 values into floats (expected by many of the
+// canvas functions).
+#define TO_FLOAT(a) static_cast<float>((a)->NumberValue())
+
+// TODO: SetStrokeColor and SetFillColor are similar except function names,
+// consolidate them into one.
+CALLBACK_FUNC_DECL(CanvasRenderingContext2DSetStrokeColor) {
+  INC_STATS("DOM.CanvasRenderingContext2D.setStrokeColor()");
+  CanvasRenderingContext2D* context =
+      V8Proxy::ToNativeObject<CanvasRenderingContext2D>(
+          V8ClassIndex::CANVASRENDERINGCONTEXT2D, args.Holder());
+  switch (args.Length()) {
+    case 1:
+      if (args[0]->IsString()) {
+        context->setStrokeColor(ToWebCoreString(args[0]));
+      } else {
+        context->setStrokeColor(TO_FLOAT(args[0]));
+      }
+      break;
+    case 2:
+      if (args[0]->IsString()) {
+        context->setStrokeColor(ToWebCoreString(args[0]),
+                                TO_FLOAT(args[1]));
+      } else {
+        context->setStrokeColor(TO_FLOAT(args[0]),
+                                TO_FLOAT(args[1]));
+      }
+      break;
+    case 4:
+      context->setStrokeColor(TO_FLOAT(args[0]),
+                              TO_FLOAT(args[1]),
+                              TO_FLOAT(args[2]),
+                              TO_FLOAT(args[3]));
+      break;
+    case 5:
+      context->setStrokeColor(TO_FLOAT(args[0]),
+                              TO_FLOAT(args[1]),
+                              TO_FLOAT(args[2]),
+                              TO_FLOAT(args[3]),
+                              TO_FLOAT(args[4]));
+      break;
+    default:
+      V8Proxy::ThrowError(V8Proxy::SYNTAX_ERROR,
+                          "setStrokeColor: Invalid number of arguments");
+      break;
+  }
+  return v8::Undefined();
+}
+
+CALLBACK_FUNC_DECL(CanvasRenderingContext2DSetFillColor) {
+  INC_STATS("DOM.CanvasRenderingContext2D.setFillColor()");
+  CanvasRenderingContext2D* context =
+      V8Proxy::ToNativeObject<CanvasRenderingContext2D>(
+          V8ClassIndex::CANVASRENDERINGCONTEXT2D, args.Holder());
+  switch (args.Length()) {
+    case 1:
+      if (args[0]->IsString()) {
+        context->setFillColor(ToWebCoreString(args[0]));
+      } else {
+        context->setFillColor(TO_FLOAT(args[0]));
+      }
+      break;
+    case 2:
+      if (args[0]->IsString()) {
+        context->setFillColor(ToWebCoreString(args[0]), TO_FLOAT(args[1]));
+      } else {
+        context->setFillColor(TO_FLOAT(args[0]), TO_FLOAT(args[1]));
+      }
+      break;
+    case 4:
+      context->setFillColor(TO_FLOAT(args[0]),
+                            TO_FLOAT(args[1]),
+                            TO_FLOAT(args[2]),
+                            TO_FLOAT(args[3]));
+      break;
+    case 5:
+      context->setFillColor(TO_FLOAT(args[0]),
+                            TO_FLOAT(args[1]),
+                            TO_FLOAT(args[2]),
+                            TO_FLOAT(args[3]),
+                            TO_FLOAT(args[4]));
+      break;
+    default:
+      V8Proxy::ThrowError(V8Proxy::SYNTAX_ERROR,
+                          "setFillColor: Invalid number of arguments");
+      break;
+  }
+  return v8::Undefined();
+}
+
+CALLBACK_FUNC_DECL(CanvasRenderingContext2DStrokeRect) {
+  INC_STATS("DOM.CanvasRenderingContext2D.strokeRect()");
+  CanvasRenderingContext2D* context =
+      V8Proxy::ToNativeObject<CanvasRenderingContext2D>(
+          V8ClassIndex::CANVASRENDERINGCONTEXT2D, args.Holder());
+  if (args.Length() == 5) {
+    context->strokeRect(TO_FLOAT(args[0]),
+                        TO_FLOAT(args[1]),
+                        TO_FLOAT(args[2]),
+                        TO_FLOAT(args[3]),
+                        TO_FLOAT(args[4]));
+  } else if (args.Length() == 4) {
+    context->strokeRect(TO_FLOAT(args[0]),
+                        TO_FLOAT(args[1]),
+                        TO_FLOAT(args[2]),
+                        TO_FLOAT(args[3]));
+  } else {
+    V8Proxy::SetDOMException(INDEX_SIZE_ERR);
+    return v8::Handle<v8::Value>();
+  }
+
+  return v8::Undefined();
+}
+
+CALLBACK_FUNC_DECL(CanvasRenderingContext2DSetShadow) {
+  INC_STATS("DOM.CanvasRenderingContext2D.setShadow()");
+  CanvasRenderingContext2D* context =
+      V8Proxy::ToNativeObject<CanvasRenderingContext2D>(
+          V8ClassIndex::CANVASRENDERINGCONTEXT2D, args.Holder());
+
+  switch (args.Length()) {
+    case 3:
+      context->setShadow(TO_FLOAT(args[0]), TO_FLOAT(args[1]),
+                         TO_FLOAT(args[2]));
+      break;
+    case 4:
+      if (args[3]->IsString())
+        context->setShadow(TO_FLOAT(args[0]), TO_FLOAT(args[1]),
+                           TO_FLOAT(args[2]), ToWebCoreString(args[3]));
+      else
+        context->setShadow(TO_FLOAT(args[0]), TO_FLOAT(args[1]),
+                           TO_FLOAT(args[2]), TO_FLOAT(args[3]));
+      break;
+    case 5:
+      if (args[3]->IsString())
+        context->setShadow(TO_FLOAT(args[0]), TO_FLOAT(args[1]),
+                           TO_FLOAT(args[2]), ToWebCoreString(args[3]),
+                           TO_FLOAT(args[4]));
+      else
+        context->setShadow(TO_FLOAT(args[0]), TO_FLOAT(args[1]),
+                           TO_FLOAT(args[2]), TO_FLOAT(args[3]),
+                           TO_FLOAT(args[4]));
+      break;
+    case 7:
+      context->setShadow(TO_FLOAT(args[0]), TO_FLOAT(args[1]),
+                         TO_FLOAT(args[2]), TO_FLOAT(args[3]),
+                         TO_FLOAT(args[4]), TO_FLOAT(args[5]),
+                         TO_FLOAT(args[6]));
+      break;
+    case 8:
+      context->setShadow(TO_FLOAT(args[0]), TO_FLOAT(args[1]),
+                         TO_FLOAT(args[2]), TO_FLOAT(args[3]),
+                         TO_FLOAT(args[4]), TO_FLOAT(args[5]),
+                         TO_FLOAT(args[6]), TO_FLOAT(args[7]));
+      break;
+    default:
+      V8Proxy::ThrowError(V8Proxy::SYNTAX_ERROR,
+                          "setShadow: Invalid number of arguments");
+      break;
+  }
+
+    return v8::Undefined();
+}
+
+CALLBACK_FUNC_DECL(CanvasRenderingContext2DDrawImage) {
+  INC_STATS("DOM.CanvasRenderingContext2D.drawImage()");
+  CanvasRenderingContext2D* context =
+      V8Proxy::ToNativeObject<CanvasRenderingContext2D>(
+          V8ClassIndex::CANVASRENDERINGCONTEXT2D, args.Holder());
+
+  v8::Handle<v8::Value> arg = args[0];
+
+  if (V8HTMLImageElement::HasInstance(arg)) {
+    ExceptionCode ec = 0;
+    HTMLImageElement* image_element =
+        V8Proxy::DOMWrapperToNode<HTMLImageElement>(arg);
+    switch (args.Length()) {
+    case 3:
+      context->drawImage(image_element, TO_FLOAT(args[1]), TO_FLOAT(args[2]));
+      break;
+    case 5:
+      context->drawImage(image_element, TO_FLOAT(args[1]), TO_FLOAT(args[2]),
+                         TO_FLOAT(args[3]), TO_FLOAT(args[4]), ec);
+      if (ec != 0) {
+        V8Proxy::SetDOMException(ec);
+        return v8::Handle<v8::Value>();
+      }
+      break;
+    case 9:
+      context->drawImage(image_element,
+                         FloatRect(TO_FLOAT(args[1]), TO_FLOAT(args[2]),
+                                   TO_FLOAT(args[3]), TO_FLOAT(args[4])),
+                         FloatRect(TO_FLOAT(args[5]), TO_FLOAT(args[6]),
+                                   TO_FLOAT(args[7]), TO_FLOAT(args[8])),
+                         ec);
+      if (ec != 0) {
+        V8Proxy::SetDOMException(ec);
+        return v8::Handle<v8::Value>();
+      }
+      break;
+    default:
+      V8Proxy::ThrowError(V8Proxy::SYNTAX_ERROR,
+                          "drawImage: Invalid number of arguments");
+      return v8::Undefined();
+    }
+    return v8::Undefined();
+  }
+
+  // HTMLCanvasElement
+  if (V8HTMLCanvasElement::HasInstance(arg)) {
+    ExceptionCode ec = 0;
+    HTMLCanvasElement* canvas_element =
+        V8Proxy::DOMWrapperToNode<HTMLCanvasElement>(arg);
+    switch (args.Length()) {
+    case 3:
+      context->drawImage(canvas_element, TO_FLOAT(args[1]), TO_FLOAT(args[2]));
+      break;
+    case 5:
+      context->drawImage(canvas_element, TO_FLOAT(args[1]), TO_FLOAT(args[2]),
+                         TO_FLOAT(args[3]), TO_FLOAT(args[4]), ec);
+      if (ec != 0) {
+        V8Proxy::SetDOMException(ec);
+        return v8::Handle<v8::Value>();
+      }
+      break;
+    case 9:
+      context->drawImage(canvas_element,
+                         FloatRect(TO_FLOAT(args[1]), TO_FLOAT(args[2]),
+                                   TO_FLOAT(args[3]), TO_FLOAT(args[4])),
+                         FloatRect(TO_FLOAT(args[5]), TO_FLOAT(args[6]),
+                                   TO_FLOAT(args[7]), TO_FLOAT(args[8])),
+                         ec);
+      if (ec != 0) {
+        V8Proxy::SetDOMException(ec);
+        return v8::Handle<v8::Value>();
+      }
+      break;
+    default:
+      V8Proxy::ThrowError(V8Proxy::SYNTAX_ERROR,
+                          "drawImage: Invalid number of arguments");
+      return v8::Undefined();
+    }
+    return v8::Undefined();
+  }
+
+  V8Proxy::SetDOMException(TYPE_MISMATCH_ERR);
+  return v8::Handle<v8::Value>();
+}
+
+CALLBACK_FUNC_DECL(CanvasRenderingContext2DDrawImageFromRect) {
+  INC_STATS("DOM.CanvasRenderingContext2D.drawImageFromRect()");
+  CanvasRenderingContext2D* context =
+      V8Proxy::ToNativeObject<CanvasRenderingContext2D>(
+          V8ClassIndex::CANVASRENDERINGCONTEXT2D, args.Holder());
+
+  v8::Handle<v8::Value> arg = args[0];
+
+  if (V8HTMLImageElement::HasInstance(arg)) {
+    HTMLImageElement* image_element =
+        V8Proxy::DOMWrapperToNode<HTMLImageElement>(arg);
+    context->drawImageFromRect(image_element,
+                               TO_FLOAT(args[1]), TO_FLOAT(args[2]),
+                               TO_FLOAT(args[3]), TO_FLOAT(args[4]),
+                               TO_FLOAT(args[5]), TO_FLOAT(args[6]),
+                               TO_FLOAT(args[7]), TO_FLOAT(args[8]),
+                               ToWebCoreString(args[9]));
+  } else {
+    V8Proxy::ThrowError(V8Proxy::TYPE_ERROR,
+                        "drawImageFromRect: Invalid type of arguments");
+  }
+
+  return v8::Undefined();
+}
+
+CALLBACK_FUNC_DECL(CanvasRenderingContext2DCreatePattern) {
+  INC_STATS("DOM.CanvasRenderingContext2D.createPattern()");
+  CanvasRenderingContext2D* context =
+      V8Proxy::ToNativeObject<CanvasRenderingContext2D>(
+          V8ClassIndex::CANVASRENDERINGCONTEXT2D, args.Holder());
+
+  v8::Handle<v8::Value> arg = args[0];
+
+  if (V8HTMLImageElement::HasInstance(arg)) {
+    HTMLImageElement* image_element =
+        V8Proxy::DOMWrapperToNode<HTMLImageElement>(arg);
+    ExceptionCode ec = 0;
+    RefPtr<CanvasPattern> pattern =
+        context->createPattern(image_element, valueToStringWithNullCheck(args[1]), ec);
+    if (ec != 0) {
+      V8Proxy::SetDOMException(ec);
+      return v8::Handle<v8::Value>();
+    }
+    return V8Proxy::ToV8Object(V8ClassIndex::CANVASPATTERN, pattern.get());
+  }
+
+  if (V8HTMLCanvasElement::HasInstance(arg)) {
+    HTMLCanvasElement* canvas_element =
+        V8Proxy::DOMWrapperToNode<HTMLCanvasElement>(arg);
+    ExceptionCode ec = 0;
+    RefPtr<CanvasPattern> pattern =
+        context->createPattern(canvas_element, valueToStringWithNullCheck(args[1]), ec);
+    if (ec != 0) {
+      V8Proxy::SetDOMException(ec);
+      return v8::Handle<v8::Value>();
+    }
+    return V8Proxy::ToV8Object(V8ClassIndex::CANVASPATTERN, pattern.get());
+  }
+
+  V8Proxy::SetDOMException(TYPE_MISMATCH_ERR);
+  return v8::Handle<v8::Value>();
+}
+
+CALLBACK_FUNC_DECL(CanvasRenderingContext2DFillText) {
+  INC_STATS("DOM.CanvasRenderingContext2D.fillText()");
+
+  CanvasRenderingContext2D* context =
+      V8Proxy::ToNativeObject<CanvasRenderingContext2D>(
+          V8ClassIndex::CANVASRENDERINGCONTEXT2D, args.Holder());
+
+  // Two forms:
+  // * fillText(text, x, y)
+  // * fillText(text, x, y, maxWidth)
+  if (args.Length() < 3 || args.Length() > 4) {
+    V8Proxy::SetDOMException(SYNTAX_ERR);
+    return v8::Handle<v8::Value>();
+  }
+
+  String text = ToWebCoreString(args[0]);
+  float x = TO_FLOAT(args[1]);
+  float y = TO_FLOAT(args[2]);
+
+  if (args.Length() == 4) {
+    float maxWidth = TO_FLOAT(args[3]);
+    context->fillText(text, x, y, maxWidth);
+  } else {
+    context->fillText(text, x, y);
+  }
+
+  return v8::Undefined();
+}
+
+CALLBACK_FUNC_DECL(CanvasRenderingContext2DStrokeText) {
+  INC_STATS("DOM.CanvasRenderingContext2D.strokeText()");
+
+  CanvasRenderingContext2D* context =
+      V8Proxy::ToNativeObject<CanvasRenderingContext2D>(
+          V8ClassIndex::CANVASRENDERINGCONTEXT2D, args.Holder());
+
+  // Two forms:
+  // * strokeText(text, x, y)
+  // * strokeText(text, x, y, maxWidth)
+  if (args.Length() < 3 || args.Length() > 4) {
+    V8Proxy::SetDOMException(SYNTAX_ERR);
+    return v8::Handle<v8::Value>();
+  }
+
+  String text = ToWebCoreString(args[0]);
+  float x = TO_FLOAT(args[1]);
+  float y = TO_FLOAT(args[2]);
+
+  if (args.Length() == 4) {
+    float maxWidth = TO_FLOAT(args[3]);
+    context->strokeText(text, x, y, maxWidth);
+  } else {
+    context->strokeText(text, x, y);
+  }
+
+  return v8::Undefined();
+}
+
+CALLBACK_FUNC_DECL(CanvasRenderingContext2DPutImageData) {
+  INC_STATS("DOM.CanvasRenderingContext2D.putImageData()");
+
+  // Two froms:
+  // * putImageData(ImageData, x, y)
+  // * putImageData(ImageData, x, y, dirtyX, dirtyY, dirtyWidth, dirtyHeight)
+  if (args.Length() != 3 && args.Length() != 7) {
+    V8Proxy::SetDOMException(SYNTAX_ERR);
+    return v8::Handle<v8::Value>();
+  }
+
+  CanvasRenderingContext2D* context =
+      V8Proxy::ToNativeObject<CanvasRenderingContext2D>(
+          V8ClassIndex::CANVASRENDERINGCONTEXT2D, args.Holder());
+
+  ImageData* imageData = 0;
+
+  // Need to check that the argument is of the correct type, since
+  // ToNativeObject() expects it to be correct. If the argument was incorrect
+  // we leave it null, and putImageData() will throw the correct exception
+  // (TYPE_MISMATCH_ERR).
+  if (V8Proxy::IsWrapperOfType(args[0], V8ClassIndex::IMAGEDATA)) {
+    imageData = V8Proxy::ToNativeObject<ImageData>(
+        V8ClassIndex::IMAGEDATA, args[0]);
+  }
+
+  ExceptionCode ec = 0;
+
+  if (args.Length() == 7) {
+    context->putImageData(imageData,
+        TO_FLOAT(args[1]), TO_FLOAT(args[2]), TO_FLOAT(args[3]),
+        TO_FLOAT(args[4]), TO_FLOAT(args[5]), TO_FLOAT(args[6]), ec);
+  } else {
+    context->putImageData(imageData, TO_FLOAT(args[1]), TO_FLOAT(args[2]), ec);
+  }
+
+  if (ec != 0) {
+    V8Proxy::SetDOMException(ec);
+    return v8::Handle<v8::Value>();
+  }
+
+  return v8::Undefined();
+}
+
+static bool AllowSettingSrcToJavascriptURL(Element* element, String name,
+                                           String value) {
+  // Need to parse value as URL first in order to check its protocol.
+  // " javascript:", "java\0script:", "javascript\t:", "javascript\1:"
+  // are all parsed as "javascript:" url.
+  // When changing location in HTMLFrameElement, value is parsed as url.
+  // We must match the behavior there.
+  // See issue 804099.
+  //
+  // parseURL is defined in CSSHelper.cpp.
+  if ((element->hasTagName(HTMLNames::iframeTag) ||
+       element->hasTagName(HTMLNames::frameTag)) &&
+      equalIgnoringCase(name, "src") &&
+      parseURL(value).startsWith("javascript:", false)) {
+    HTMLFrameElementBase* frame = static_cast<HTMLFrameElementBase*>(element);
+    Node* contentDoc = frame->contentDocument();
+    if (contentDoc && !V8Proxy::CheckNodeSecurity(contentDoc))
+      return false;
+  }
+  return true;
+}
+
+
+static bool AllowSettingFrameSrcToJavascriptUrl(HTMLFrameElementBase* frame,
+                                                String value) {
+  // See same issue in AllowSettingSrcToJavascriptURL.
+  if (parseURL(value).startsWith("javascript:", false)) {
+    Node* contentDoc = frame->contentDocument();
+    if (contentDoc && !V8Proxy::CheckNodeSecurity(contentDoc))
+      return false;
+  }
+  return true;
+}
+
+
+// HTMLIFrameElement -----------------------------------------------------------
+
+// TODO(mbelshe): This should move into V8DOMWindowCustom.cpp
+// Can't move it right now because it depends on V8ScheduledAction,
+// which is private to this file (v8_custom.cpp).
+v8::Handle<v8::Value> V8Custom::WindowSetTimeoutImpl(const v8::Arguments& args,
+                                                     bool single_shot) {
+  int num_arguments = args.Length();
+
+  if (num_arguments < 1) return v8::Undefined();
+
+  DOMWindow* imp = V8Proxy::ToNativeObject<DOMWindow>(
+      V8ClassIndex::DOMWINDOW, args.Holder());
+
+  if (!imp->frame())
+    return v8::Undefined();
+
+  if (!V8Proxy::CanAccessFrame(imp->frame(), true))
+    return v8::Undefined();
+
+  ScriptExecutionContext* script_context =
+    static_cast<ScriptExecutionContext*>(imp->frame()->document());
+
+  v8::Handle<v8::Value> function = args[0];
+
+  int32_t timeout = 0;
+  if (num_arguments >= 2) timeout = args[1]->Int32Value();
+
+  int id;
+  if (function->IsString()) {
+    // Don't allow setting timeouts to run empty functions!
+    // (Bug 1009597)
+    WebCore::String string_function = ToWebCoreString(function);
+    if (string_function.length() == 0)
+      return v8::Undefined();
+
+    id = DOMTimer::install(script_context,
+                           new ScheduledAction(string_function), timeout,
+                           single_shot);
+  } else if (function->IsFunction()) {
+    int param_count = num_arguments >= 2 ? num_arguments - 2 : 0;
+    v8::Local<v8::Value>* params = 0;
+    if (param_count > 0) {
+      params = new v8::Local<v8::Value>[param_count];
+      for (int i = 0; i < param_count; i++)
+        // parameters must be globalized
+        params[i] = args[i+2];
+    }
+
+    // params is passed to action, and released in action's destructor
+    ScheduledAction* action = new ScheduledAction(
+        v8::Handle<v8::Function>::Cast(function), param_count, params);
+
+    delete[] params;
+
+    id = DOMTimer::install(script_context, action, timeout, single_shot);
+  } else {
+    // TODO(fqian): what's the right return value if failed.
+    return v8::Undefined();
+  }
+  return v8::Integer::New(id);
+}
+
+
+// DOMWindow -------------------------------------------------------------------
+
+static bool IsAscii(const String& str) {
+  for (size_t i = 0; i < str.length(); i++) {
+    if (str[i] > 0xFF)
+      return false;
+  }
+  return true;
+}
+
+static v8::Handle<v8::Value> Base64Convert(const String& str, bool encode) {
+  if (!IsAscii(str)) {
+    V8Proxy::SetDOMException(INVALID_CHARACTER_ERR);
+    return v8::Handle<v8::Value>();
+  }
+
+  Vector<char> in(str.length());
+  for (size_t i = 0; i < str.length(); i++) {
+    in[i] = static_cast<char>(str[i]);
+  }
+  Vector<char> out;
+
+  if (encode) {
+    base64Encode(in, out);
+  } else {
+    if (!base64Decode(in, out)) {
+      V8Proxy::ThrowError(V8Proxy::GENERAL_ERROR, "Cannot decode base64");
+      return v8::Undefined();
+    }
+  }
+
+  return v8String(String(out.data(), out.size()));
+}
+
+CALLBACK_FUNC_DECL(DOMWindowAtob) {
+  INC_STATS("DOM.DOMWindow.atob()");
+  DOMWindow* imp = V8Proxy::ToNativeObject<DOMWindow>(
+      V8ClassIndex::DOMWINDOW, args.Holder());
+
+  if (!V8Proxy::CanAccessFrame(imp->frame(), true))
+    return v8::Undefined();
+
+  if (args.Length() < 1) {
+    V8Proxy::ThrowError(V8Proxy::SYNTAX_ERROR, "Not enough arguments");
+    return v8::Undefined();
+  }
+
+  if (args[0]->IsNull()) return v8String("");
+
+  String str = ToWebCoreString(args[0]);
+  return Base64Convert(str, false);
+}
+
+CALLBACK_FUNC_DECL(DOMWindowBtoa) {
+  INC_STATS("DOM.DOMWindow.btoa()");
+  DOMWindow* imp = V8Proxy::ToNativeObject<DOMWindow>(
+      V8ClassIndex::DOMWINDOW, args.Holder());
+
+  if (!V8Proxy::CanAccessFrame(imp->frame(), true))
+    return v8::Undefined();
+
+  if (args.Length() < 1) {
+    V8Proxy::ThrowError(V8Proxy::SYNTAX_ERROR, "Not enough arguments");
+    return v8::Undefined();
+  }
+
+  if (args[0]->IsNull()) return v8String("");
+
+  String str = ToWebCoreString(args[0]);
+  return Base64Convert(str, true);
+}
+
+// TODO(fqian): returning string is cheating, and we should
+// fix this by calling toString function on the receiver.
+// However, V8 implements toString in JavaScript, which requires
+// switching context of receiver. I consider it is dangerous.
+CALLBACK_FUNC_DECL(DOMWindowToString)
+{
+    INC_STATS("DOM.DOMWindow.toString()");
+    return args.This()->ObjectProtoToString();
+}
+
+CALLBACK_FUNC_DECL(DOMWindowNOP)
+{
+    INC_STATS("DOM.DOMWindow.nop()");
+    return v8::Undefined();
+}
+
+
+CALLBACK_FUNC_DECL(HTMLFormElementSubmit) {
+  INC_STATS("DOM.HTMLFormElement.submit()");
+
+  HTMLFormElement* form =
+    V8Proxy::DOMWrapperToNative<HTMLFormElement>(args.Holder());
+
+  form->submit(0, false, false);
+  return v8::Undefined();
+}
+
+static String EventNameFromAttributeName(const String& name) {
+  ASSERT(name.startsWith("on"));
+  String event_type = name.substring(2);
+
+  if (event_type.startsWith("w")) {
+    switch(event_type[event_type.length() - 1]) {
+      case 't':
+        event_type = "webkitAnimationStart";
+        break;
+      case 'n':
+        event_type = "webkitAnimationIteration";
+        break;
+      case 'd':
+        ASSERT(event_type.length() > 7);
+        if (event_type[7] == 'a')
+          event_type = "webkitAnimationEnd";
+        else
+          event_type = "webkitTransitionEnd";
+        break;
+    }
+  }
+
+  return event_type;
+}
+
+
+ACCESSOR_SETTER(DOMWindowEventHandler) {
+  v8::Handle<v8::Object> holder = V8Proxy::LookupDOMWrapper(
+      V8ClassIndex::DOMWINDOW, info.This());
+  if (holder.IsEmpty())
+    return;
+
+  DOMWindow* imp = V8Proxy::ToNativeObject<DOMWindow>(
+      V8ClassIndex::DOMWINDOW, holder);
+  if (!imp->frame())
+    return;
+
+  Document* doc = imp->frame()->document();
+  if (!doc)
+    return;
+
+  String key = ToWebCoreString(name);
+  String event_type = EventNameFromAttributeName(key);
+
+  if (value->IsNull()) {
+    // Clear the event listener
+    doc->removeWindowInlineEventListenerForType(event_type);
+  } else {
+    V8Proxy* proxy = V8Proxy::retrieve(imp->frame());
+    if (!proxy)
+      return;
+
+    RefPtr<EventListener> listener =
+      proxy->FindOrCreateV8EventListener(value, true);
+    if (listener) {
+      doc->setWindowInlineEventListenerForType(event_type, listener);
+    }
+  }
+}
+
+
+ACCESSOR_GETTER(DOMWindowEventHandler) {
+  v8::Handle<v8::Object> holder = V8Proxy::LookupDOMWrapper(
+      V8ClassIndex::DOMWINDOW, info.This());
+  if (holder.IsEmpty())
+    return v8::Undefined();
+
+  DOMWindow* imp = V8Proxy::ToNativeObject<DOMWindow>(
+      V8ClassIndex::DOMWINDOW, holder);
+  if (!imp->frame())
+    return v8::Undefined();
+
+  Document* doc = imp->frame()->document();
+  if (!doc)
+    return v8::Undefined();
+
+  String key = ToWebCoreString(name);
+  String event_type = EventNameFromAttributeName(key);
+
+  EventListener* listener = doc->windowInlineEventListenerForType(event_type);
+  return V8Proxy::EventListenerToV8Object(listener);
+}
+
+
+// --------------- Security Checks -------------------------
+NAMED_ACCESS_CHECK(DOMWindow) {
+  ASSERT(V8ClassIndex::FromInt(data->Int32Value()) == V8ClassIndex::DOMWINDOW);
+  v8::Handle<v8::Value> window =
+    V8Proxy::LookupDOMWrapper(V8ClassIndex::DOMWINDOW, host);
+  if (window.IsEmpty())
+      return false;  // the frame is gone.
+
+  DOMWindow* target_win =
+    V8Proxy::ToNativeObject<DOMWindow>(V8ClassIndex::DOMWINDOW, window);
+
+  ASSERT(target_win);
+
+  Frame* target = target_win->frame();
+  if (!target)
+    return false;
+
+  if (key->IsString()) {
+    String name = ToWebCoreString(key);
+
+    // Allow access of GET and HAS if index is a subframe.
+    if ((type == v8::ACCESS_GET || type == v8::ACCESS_HAS) &&
+        target->tree()->child(name)) {
+      return true;
+    }
+  }
+
+  return V8Proxy::CanAccessFrame(target, false);
+}
+
+
+INDEXED_ACCESS_CHECK(DOMWindow) {
+  ASSERT(V8ClassIndex::FromInt(data->Int32Value()) == V8ClassIndex::DOMWINDOW);
+  v8::Handle<v8::Value> window =
+    V8Proxy::LookupDOMWrapper(V8ClassIndex::DOMWINDOW, host);
+  if (window.IsEmpty())
+      return false;
+
+  DOMWindow* target_win =
+    V8Proxy::ToNativeObject<DOMWindow>(V8ClassIndex::DOMWINDOW, window);
+
+  ASSERT(target_win);
+
+  Frame* target = target_win->frame();
+  if (!target)
+    return false;
+
+  // Allow access of GET and HAS if index is a subframe.
+  if ((type == v8::ACCESS_GET || type == v8::ACCESS_HAS) &&
+      target->tree()->child(index)) {
+    return true;
+  }
+
+  return V8Proxy::CanAccessFrame(target, false);
+}
+
+
+INDEXED_ACCESS_CHECK(History) {
+  ASSERT(V8ClassIndex::FromInt(data->Int32Value()) == V8ClassIndex::HISTORY);
+  // Only allow same origin access
+  History* imp =
+      V8Proxy::ToNativeObject<History>(V8ClassIndex::HISTORY, host);
+  return V8Proxy::CanAccessFrame(imp->frame(), false);
+}
+
+
+NAMED_ACCESS_CHECK(History) {
+  ASSERT(V8ClassIndex::FromInt(data->Int32Value()) == V8ClassIndex::HISTORY);
+  // Only allow same origin access
+  History* imp =
+      V8Proxy::ToNativeObject<History>(V8ClassIndex::HISTORY, host);
+  return V8Proxy::CanAccessFrame(imp->frame(), false);
+}
+
+
+
+#undef INDEXED_ACCESS_CHECK
+#undef NAMED_ACCESS_CHECK
+#undef NAMED_PROPERTY_GETTER
+#undef NAMED_PROPERTY_SETTER
+
+
+// static
+Frame* V8Custom::GetTargetFrame(v8::Local<v8::Object> host,
+                                v8::Local<v8::Value> data) {
+  Frame* target = 0;
+  switch (V8ClassIndex::FromInt(data->Int32Value())) {
+    case V8ClassIndex::DOMWINDOW: {
+      v8::Handle<v8::Value> window =
+          V8Proxy::LookupDOMWrapper(V8ClassIndex::DOMWINDOW, host);
+      if (window.IsEmpty())
+          return target;
+
+      DOMWindow* target_win =
+        V8Proxy::ToNativeObject<DOMWindow>(V8ClassIndex::DOMWINDOW, window);
+      target = target_win->frame();
+      break;
+    }
+    case V8ClassIndex::LOCATION: {
+      History* imp =
+          V8Proxy::ToNativeObject<History>(V8ClassIndex::HISTORY, host);
+      target = imp->frame();
+      break;
+    }
+    case V8ClassIndex::HISTORY: {
+      Location* imp =
+          V8Proxy::ToNativeObject<Location>(V8ClassIndex::LOCATION, host);
+      target = imp->frame();
+      break;
+    }
+    default:
+      break;
+  }
+  return target;
+}
+
+#if ENABLE(SVG)
+V8ClassIndex::V8WrapperType V8Custom::DowncastSVGPathSeg(void* path_seg) {
+  WebCore::SVGPathSeg *real_path_seg =
+      reinterpret_cast<WebCore::SVGPathSeg*>(path_seg);
+
+  switch (real_path_seg->pathSegType()) {
+#define MAKE_CASE(svg_val, v8_val) \
+  case WebCore::SVGPathSeg::svg_val:           \
+    return V8ClassIndex::v8_val;
+
+MAKE_CASE(PATHSEG_CLOSEPATH,                    SVGPATHSEGCLOSEPATH)
+MAKE_CASE(PATHSEG_MOVETO_ABS,                   SVGPATHSEGMOVETOABS)
+MAKE_CASE(PATHSEG_MOVETO_REL,                   SVGPATHSEGMOVETOREL)
+MAKE_CASE(PATHSEG_LINETO_ABS,                   SVGPATHSEGLINETOABS)
+MAKE_CASE(PATHSEG_LINETO_REL,                   SVGPATHSEGLINETOREL)
+MAKE_CASE(PATHSEG_CURVETO_CUBIC_ABS,            SVGPATHSEGCURVETOCUBICABS)
+MAKE_CASE(PATHSEG_CURVETO_CUBIC_REL,            SVGPATHSEGCURVETOCUBICREL)
+MAKE_CASE(PATHSEG_CURVETO_QUADRATIC_ABS,        SVGPATHSEGCURVETOQUADRATICABS)
+MAKE_CASE(PATHSEG_CURVETO_QUADRATIC_REL,        SVGPATHSEGCURVETOQUADRATICREL)
+MAKE_CASE(PATHSEG_ARC_ABS,                      SVGPATHSEGARCABS)
+MAKE_CASE(PATHSEG_ARC_REL,                      SVGPATHSEGARCREL)
+MAKE_CASE(PATHSEG_LINETO_HORIZONTAL_ABS,        SVGPATHSEGLINETOHORIZONTALABS)
+MAKE_CASE(PATHSEG_LINETO_HORIZONTAL_REL,        SVGPATHSEGLINETOHORIZONTALREL)
+MAKE_CASE(PATHSEG_LINETO_VERTICAL_ABS,          SVGPATHSEGLINETOVERTICALABS)
+MAKE_CASE(PATHSEG_LINETO_VERTICAL_REL,          SVGPATHSEGLINETOVERTICALREL)
+MAKE_CASE(PATHSEG_CURVETO_CUBIC_SMOOTH_ABS,     SVGPATHSEGCURVETOCUBICSMOOTHABS)
+MAKE_CASE(PATHSEG_CURVETO_CUBIC_SMOOTH_REL,     SVGPATHSEGCURVETOCUBICSMOOTHREL)
+MAKE_CASE(PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS, \
+          SVGPATHSEGCURVETOQUADRATICSMOOTHABS)
+MAKE_CASE(PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL, \
+          SVGPATHSEGCURVETOQUADRATICSMOOTHREL)
+
+#undef MAKE_CASE
+
+  default:
+    return V8ClassIndex::INVALID_CLASS_INDEX;
+  }
+}
+
+#endif  // ENABLE(SVG)
+
+}  // namespace WebCore
diff --git a/V8Binding/binding/v8_custom.h b/V8Binding/binding/v8_custom.h
new file mode 100644
index 0000000..caeac41
--- /dev/null
+++ b/V8Binding/binding/v8_custom.h
@@ -0,0 +1,559 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_CUSTOM_H__
+#define V8_CUSTOM_H__
+
+#include <v8.h>
+#include "v8_index.h"
+
+struct NPObject;
+
+#define CALLBACK_FUNC_DECL(NAME)                \
+v8::Handle<v8::Value> V8Custom::v8##NAME##Callback(const v8::Arguments& args)
+
+#define ACCESSOR_GETTER(NAME) \
+v8::Handle<v8::Value> V8Custom::v8##NAME##AccessorGetter(\
+    v8::Local<v8::String> name, const v8::AccessorInfo& info)
+
+#define ACCESSOR_SETTER(NAME) \
+void V8Custom::v8##NAME##AccessorSetter(v8::Local<v8::String> name, \
+                                        v8::Local<v8::Value> value, \
+                                        const v8::AccessorInfo& info)
+
+#define INDEXED_PROPERTY_GETTER(NAME)  \
+v8::Handle<v8::Value> V8Custom::v8##NAME##IndexedPropertyGetter(\
+    uint32_t index, const v8::AccessorInfo& info)
+
+#define INDEXED_PROPERTY_SETTER(NAME)  \
+v8::Handle<v8::Value> V8Custom::v8##NAME##IndexedPropertySetter(\
+    uint32_t index, v8::Local<v8::Value> value, const v8::AccessorInfo& info)
+
+#define INDEXED_PROPERTY_DELETER(NAME) \
+v8::Handle<v8::Boolean> V8Custom::v8##NAME##IndexedPropertyDeleter(\
+    uint32_t index, const v8::AccessorInfo& info)
+
+#define NAMED_PROPERTY_GETTER(NAME)  \
+    v8::Handle<v8::Value> V8Custom::v8##NAME##NamedPropertyGetter(\
+    v8::Local<v8::String> name, const v8::AccessorInfo& info)
+
+#define NAMED_PROPERTY_SETTER(NAME)  \
+    v8::Handle<v8::Value> V8Custom::v8##NAME##NamedPropertySetter(\
+    v8::Local<v8::String> name, v8::Local<v8::Value> value, \
+    const v8::AccessorInfo& info)
+
+#define NAMED_PROPERTY_DELETER(NAME) \
+    v8::Handle<v8::Boolean> V8Custom::v8##NAME##NamedPropertyDeleter(\
+    v8::Local<v8::String> name, const v8::AccessorInfo& info)
+
+#define NAMED_ACCESS_CHECK(NAME) \
+    bool V8Custom::v8##NAME##NamedSecurityCheck(v8::Local<v8::Object> host, \
+    v8::Local<v8::Value> key, \
+    v8::AccessType type, \
+    v8::Local<v8::Value> data)
+
+#define INDEXED_ACCESS_CHECK(NAME) \
+    bool V8Custom::v8##NAME##IndexedSecurityCheck(v8::Local<v8::Object> host, \
+    uint32_t index, \
+    v8::AccessType type, \
+    v8::Local<v8::Value> data)
+
+namespace WebCore {
+
+class Frame;
+class V8Proxy;
+class String;
+class HTMLCollection;
+class DOMWindow;
+
+class V8Custom {
+ public:
+
+  // Constants.
+  static const int kDOMWrapperTypeIndex = 0;
+  static const int kDOMWrapperObjectIndex = 1;
+  static const int kDefaultWrapperInternalFieldCount = 2;
+
+  static const int kNPObjectInternalFieldCount =
+                      kDefaultWrapperInternalFieldCount + 0;
+
+  static const int kDocumentImplementationIndex =
+                      kDefaultWrapperInternalFieldCount + 0;
+  static const int kDocumentMinimumInternalFieldCount =
+                      kDefaultWrapperInternalFieldCount + 1;
+
+  static const int kHTMLDocumentMarkerIndex =
+                      kDocumentMinimumInternalFieldCount + 0;
+  static const int kHTMLDocumentShadowIndex =
+                      kDocumentMinimumInternalFieldCount + 1;
+  static const int kHTMLDocumentInternalFieldCount =
+                      kDocumentMinimumInternalFieldCount + 2;
+
+  static const int kXMLHttpRequestCacheIndex =
+                      kDefaultWrapperInternalFieldCount + 0;
+  static const int kXMLHttpRequestInternalFieldCount =
+                      kDefaultWrapperInternalFieldCount + 1;
+
+  static const int kMessageChannelPort1Index =
+                      kDefaultWrapperInternalFieldCount + 0;
+  static const int kMessageChannelPort2Index =
+                      kDefaultWrapperInternalFieldCount + 1;
+  static const int kMessageChannelInternalFieldCount =
+                      kDefaultWrapperInternalFieldCount + 2;
+
+  static const int kMessagePortRequestCacheIndex =
+                      kDefaultWrapperInternalFieldCount + 0;
+  static const int kMessagePortEntangledPortIndex =
+                      kDefaultWrapperInternalFieldCount + 1;
+  static const int kMessagePortInternalFieldCount =
+                      kDefaultWrapperInternalFieldCount + 2;
+
+#if ENABLE(WORKERS)
+  static const int kWorkerRequestCacheIndex =
+                      kDefaultWrapperInternalFieldCount + 0;
+  static const int kWorkerInternalFieldCount =
+                      kDefaultWrapperInternalFieldCount + 1;
+
+  static const int kWorkerContextRequestCacheIndex =
+                      kDefaultWrapperInternalFieldCount + 0;
+  static const int kWorkerContextInternalFieldCount =
+                      kDefaultWrapperInternalFieldCount + 1;
+#endif
+
+  static const int kDOMWindowHistoryIndex =
+                      kDefaultWrapperInternalFieldCount + 0;
+  static const int kDOMWindowNavigatorIndex =
+                      kDefaultWrapperInternalFieldCount + 1;
+  static const int kDOMWindowLocationIndex =
+                      kDefaultWrapperInternalFieldCount + 2;
+  static const int kDOMWindowInternalFieldCount =
+                      kDefaultWrapperInternalFieldCount + 3;
+
+  static const int kStyleSheetOwnerNodeIndex =
+                      kDefaultWrapperInternalFieldCount + 0;
+  static const int kStyleSheetInternalFieldCount =
+                      kDefaultWrapperInternalFieldCount + 1;
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+  static const int kDOMApplicationCacheCacheIndex =
+                      kDefaultWrapperInternalFieldCount + 0;
+  static const int kDOMApplicationCacheFieldCount =
+                      kDefaultWrapperInternalFieldCount + 1;
+#endif
+
+#define DECLARE_PROPERTY_ACCESSOR_GETTER(NAME) \
+static v8::Handle<v8::Value> v8##NAME##AccessorGetter(\
+    v8::Local<v8::String> name, const v8::AccessorInfo& info);
+
+#define DECLARE_PROPERTY_ACCESSOR_SETTER(NAME)  \
+static void v8##NAME##AccessorSetter(v8::Local<v8::String> name, \
+                                     v8::Local<v8::Value> value, \
+                                     const v8::AccessorInfo& info);
+
+#define DECLARE_PROPERTY_ACCESSOR(NAME) \
+  DECLARE_PROPERTY_ACCESSOR_GETTER(NAME) \
+  DECLARE_PROPERTY_ACCESSOR_SETTER(NAME)
+
+
+#define DECLARE_NAMED_PROPERTY_GETTER(NAME)  \
+static v8::Handle<v8::Value> v8##NAME##NamedPropertyGetter(\
+    v8::Local<v8::String> name, const v8::AccessorInfo& info);
+
+#define DECLARE_NAMED_PROPERTY_SETTER(NAME)  \
+static v8::Handle<v8::Value> v8##NAME##NamedPropertySetter(\
+    v8::Local<v8::String> name, \
+    v8::Local<v8::Value> value, \
+    const v8::AccessorInfo& info);
+
+#define DECLARE_NAMED_PROPERTY_DELETER(NAME)  \
+static v8::Handle<v8::Boolean> v8##NAME##NamedPropertyDeleter(\
+    v8::Local<v8::String> name, const v8::AccessorInfo& info);
+
+#define USE_NAMED_PROPERTY_GETTER(NAME) \
+  V8Custom::v8##NAME##NamedPropertyGetter
+
+#define USE_NAMED_PROPERTY_SETTER(NAME) \
+  V8Custom::v8##NAME##NamedPropertySetter
+
+#define USE_NAMED_PROPERTY_DELETER(NAME) \
+  V8Custom::v8##NAME##NamedPropertyDeleter
+
+#define DECLARE_INDEXED_PROPERTY_GETTER(NAME)  \
+static v8::Handle<v8::Value> v8##NAME##IndexedPropertyGetter(\
+    uint32_t index, const v8::AccessorInfo& info);
+
+#define DECLARE_INDEXED_PROPERTY_SETTER(NAME)  \
+static v8::Handle<v8::Value> v8##NAME##IndexedPropertySetter(\
+    uint32_t index, v8::Local<v8::Value> value, const v8::AccessorInfo& info);
+
+#define DECLARE_INDEXED_PROPERTY_DELETER(NAME)  \
+static v8::Handle<v8::Boolean> v8##NAME##IndexedPropertyDeleter(\
+    uint32_t index, const v8::AccessorInfo& info);
+
+#define USE_INDEXED_PROPERTY_GETTER(NAME) \
+  V8Custom::v8##NAME##IndexedPropertyGetter
+
+#define USE_INDEXED_PROPERTY_SETTER(NAME) \
+  V8Custom::v8##NAME##IndexedPropertySetter
+
+#define USE_INDEXED_PROPERTY_DELETER(NAME) \
+  V8Custom::v8##NAME##IndexedPropertyDeleter
+
+#define DECLARE_CALLBACK(NAME)                \
+static v8::Handle<v8::Value> v8##NAME##Callback(const v8::Arguments& args);
+
+#define USE_CALLBACK(NAME) \
+  V8Custom::v8##NAME##Callback
+
+#define DECLARE_NAMED_ACCESS_CHECK(NAME) \
+static bool v8##NAME##NamedSecurityCheck(v8::Local<v8::Object> host, \
+                                         v8::Local<v8::Value> key, \
+                                         v8::AccessType type, \
+                                         v8::Local<v8::Value> data);
+
+#define DECLARE_INDEXED_ACCESS_CHECK(NAME) \
+static bool v8##NAME##IndexedSecurityCheck(v8::Local<v8::Object> host, \
+                                           uint32_t index, \
+                                           v8::AccessType type, \
+                                           v8::Local<v8::Value> data);
+
+DECLARE_PROPERTY_ACCESSOR(CanvasRenderingContext2DStrokeStyle)
+DECLARE_PROPERTY_ACCESSOR(CanvasRenderingContext2DFillStyle)
+// Customized getter&setter of DOMWindow.location
+DECLARE_PROPERTY_ACCESSOR_SETTER(DOMWindowLocation)
+// Customized setter of DOMWindow.opener
+DECLARE_PROPERTY_ACCESSOR_SETTER(DOMWindowOpener)
+
+DECLARE_PROPERTY_ACCESSOR(DocumentLocation)
+DECLARE_PROPERTY_ACCESSOR(DocumentImplementation)
+DECLARE_PROPERTY_ACCESSOR_GETTER(EventSrcElement)
+DECLARE_PROPERTY_ACCESSOR(EventReturnValue)
+DECLARE_PROPERTY_ACCESSOR_GETTER(EventDataTransfer)
+DECLARE_PROPERTY_ACCESSOR_GETTER(EventClipboardData)
+
+// Getter/Setter for window event handlers
+DECLARE_PROPERTY_ACCESSOR(DOMWindowEventHandler)
+// Getter/Setter for Element event handlers
+DECLARE_PROPERTY_ACCESSOR(ElementEventHandler)
+
+// HTMLCanvasElement
+DECLARE_CALLBACK(HTMLCanvasElementGetContext)
+
+// Customized setter of src and location on HTMLFrameElement
+DECLARE_PROPERTY_ACCESSOR_SETTER(HTMLFrameElementSrc)
+DECLARE_PROPERTY_ACCESSOR_SETTER(HTMLFrameElementLocation)
+// Customized setter of src on HTMLIFrameElement
+DECLARE_PROPERTY_ACCESSOR_SETTER(HTMLIFrameElementSrc)
+// Customized setter of Attr.value
+DECLARE_PROPERTY_ACCESSOR_SETTER(AttrValue)
+
+// Customized setter of HTMLOptionsCollection length
+DECLARE_PROPERTY_ACCESSOR(HTMLOptionsCollectionLength)
+
+DECLARE_CALLBACK(HTMLInputElementSetSelectionRange)
+
+// Customized accessors for HTMLInputElement
+DECLARE_PROPERTY_ACCESSOR(HTMLInputElementSelectionStart)
+DECLARE_PROPERTY_ACCESSOR(HTMLInputElementSelectionEnd)
+
+DECLARE_NAMED_ACCESS_CHECK(Location)
+DECLARE_INDEXED_ACCESS_CHECK(History)
+
+DECLARE_NAMED_ACCESS_CHECK(History)
+DECLARE_INDEXED_ACCESS_CHECK(Location)
+
+// HTMLCollection customized functions.
+DECLARE_CALLBACK(HTMLCollectionItem)
+DECLARE_CALLBACK(HTMLCollectionNamedItem)
+// HTMLCollections are callable as functions.
+DECLARE_CALLBACK(HTMLCollectionCallAsFunction)
+
+// HTMLSelectElement customized functions.
+DECLARE_CALLBACK(HTMLSelectElementRemove)
+
+// HTMLOptionsCollection customized functions.
+DECLARE_CALLBACK(HTMLOptionsCollectionRemove)
+DECLARE_CALLBACK(HTMLOptionsCollectionAdd)
+
+// HTMLDocument customized functions
+DECLARE_CALLBACK(HTMLDocumentWrite)
+DECLARE_CALLBACK(HTMLDocumentWriteln)
+DECLARE_CALLBACK(HTMLDocumentOpen)
+DECLARE_PROPERTY_ACCESSOR(HTMLDocumentAll)
+DECLARE_NAMED_PROPERTY_GETTER(HTMLDocument)
+DECLARE_NAMED_PROPERTY_DELETER(HTMLDocument)
+
+// Document customized functions
+DECLARE_CALLBACK(DocumentEvaluate)
+DECLARE_CALLBACK(DocumentGetCSSCanvasContext)
+
+// Window customized functions
+DECLARE_CALLBACK(DOMWindowAddEventListener)
+DECLARE_CALLBACK(DOMWindowRemoveEventListener)
+DECLARE_CALLBACK(DOMWindowPostMessage)
+DECLARE_CALLBACK(DOMWindowSetTimeout)
+DECLARE_CALLBACK(DOMWindowSetInterval)
+DECLARE_CALLBACK(DOMWindowAtob)
+DECLARE_CALLBACK(DOMWindowBtoa)
+DECLARE_CALLBACK(DOMWindowNOP)
+DECLARE_CALLBACK(DOMWindowToString)
+DECLARE_CALLBACK(DOMWindowShowModalDialog)
+DECLARE_CALLBACK(DOMWindowOpen)
+DECLARE_CALLBACK(DOMWindowClearTimeout)
+DECLARE_CALLBACK(DOMWindowClearInterval)
+
+DECLARE_CALLBACK(DOMParserConstructor)
+DECLARE_CALLBACK(MessageChannelConstructor)
+DECLARE_CALLBACK(WebKitCSSMatrixConstructor)
+DECLARE_CALLBACK(WebKitPointConstructor)
+DECLARE_CALLBACK(XMLHttpRequestConstructor)
+DECLARE_CALLBACK(XMLSerializerConstructor)
+DECLARE_CALLBACK(XPathEvaluatorConstructor)
+DECLARE_CALLBACK(XSLTProcessorConstructor)
+
+// Implementation of custom XSLTProcessor methods.
+DECLARE_CALLBACK(XSLTProcessorImportStylesheet)
+DECLARE_CALLBACK(XSLTProcessorTransformToFragment)
+DECLARE_CALLBACK(XSLTProcessorTransformToDocument)
+DECLARE_CALLBACK(XSLTProcessorSetParameter)
+DECLARE_CALLBACK(XSLTProcessorGetParameter)
+DECLARE_CALLBACK(XSLTProcessorRemoveParameter)
+
+// CSSPrimitiveValue customized functions
+DECLARE_CALLBACK(CSSPrimitiveValueGetRGBColorValue)
+
+// Canvas 2D customized functions
+DECLARE_CALLBACK(CanvasRenderingContext2DSetStrokeColor)
+DECLARE_CALLBACK(CanvasRenderingContext2DSetFillColor)
+DECLARE_CALLBACK(CanvasRenderingContext2DStrokeRect)
+DECLARE_CALLBACK(CanvasRenderingContext2DSetShadow)
+DECLARE_CALLBACK(CanvasRenderingContext2DDrawImage)
+DECLARE_CALLBACK(CanvasRenderingContext2DDrawImageFromRect)
+DECLARE_CALLBACK(CanvasRenderingContext2DCreatePattern)
+DECLARE_CALLBACK(CanvasRenderingContext2DFillText)
+DECLARE_CALLBACK(CanvasRenderingContext2DStrokeText)
+DECLARE_CALLBACK(CanvasRenderingContext2DPutImageData)
+
+// Implementation of Clipboard attributes and methods.
+DECLARE_PROPERTY_ACCESSOR_GETTER(ClipboardTypes)
+DECLARE_CALLBACK(ClipboardClearData)
+DECLARE_CALLBACK(ClipboardGetData)
+DECLARE_CALLBACK(ClipboardSetData)
+DECLARE_CALLBACK(ClipboardSetDragImage);
+
+// Implementation of Element methods.
+DECLARE_CALLBACK(ElementQuerySelector)
+DECLARE_CALLBACK(ElementQuerySelectorAll)
+DECLARE_CALLBACK(ElementSetAttribute)
+DECLARE_CALLBACK(ElementSetAttributeNode)
+DECLARE_CALLBACK(ElementSetAttributeNS)
+DECLARE_CALLBACK(ElementSetAttributeNodeNS)
+
+// Implementation of custom Location methods.
+DECLARE_PROPERTY_ACCESSOR_SETTER(LocationProtocol)
+DECLARE_PROPERTY_ACCESSOR_SETTER(LocationHost)
+DECLARE_PROPERTY_ACCESSOR_SETTER(LocationHostname)
+DECLARE_PROPERTY_ACCESSOR_SETTER(LocationPort)
+DECLARE_PROPERTY_ACCESSOR_SETTER(LocationPathname)
+DECLARE_PROPERTY_ACCESSOR_SETTER(LocationSearch)
+DECLARE_PROPERTY_ACCESSOR_SETTER(LocationHash)
+DECLARE_PROPERTY_ACCESSOR_SETTER(LocationHref)
+DECLARE_PROPERTY_ACCESSOR_GETTER(LocationAssign)
+DECLARE_PROPERTY_ACCESSOR_GETTER(LocationReplace)
+DECLARE_PROPERTY_ACCESSOR_GETTER(LocationReload)
+DECLARE_CALLBACK(LocationAssign)
+DECLARE_CALLBACK(LocationReplace)
+DECLARE_CALLBACK(LocationReload)
+DECLARE_CALLBACK(LocationToString)
+DECLARE_CALLBACK(LocationValueOf)
+
+// Implementation of EventTarget::addEventListener
+// and EventTarget::removeEventListener
+DECLARE_CALLBACK(NodeAddEventListener)
+DECLARE_CALLBACK(NodeRemoveEventListener)
+
+// Custom implementation is Navigator properties.
+// We actually only need this because WebKit has
+// navigator.appVersion as custom. Our version just
+// passes through.
+DECLARE_PROPERTY_ACCESSOR(NavigatorAppVersion)
+
+// Custom implementation of XMLHttpRequest properties
+DECLARE_PROPERTY_ACCESSOR(XMLHttpRequestOnabort)
+DECLARE_PROPERTY_ACCESSOR(XMLHttpRequestOnerror)
+DECLARE_PROPERTY_ACCESSOR(XMLHttpRequestOnload)
+DECLARE_PROPERTY_ACCESSOR(XMLHttpRequestOnloadstart)
+DECLARE_PROPERTY_ACCESSOR(XMLHttpRequestOnprogress)
+DECLARE_PROPERTY_ACCESSOR(XMLHttpRequestOnreadystatechange)
+DECLARE_PROPERTY_ACCESSOR(XMLHttpRequestResponseText)
+DECLARE_CALLBACK(XMLHttpRequestAddEventListener)
+DECLARE_CALLBACK(XMLHttpRequestRemoveEventListener)
+DECLARE_CALLBACK(XMLHttpRequestOpen)
+DECLARE_CALLBACK(XMLHttpRequestSend)
+DECLARE_CALLBACK(XMLHttpRequestSetRequestHeader)
+DECLARE_CALLBACK(XMLHttpRequestGetResponseHeader)
+DECLARE_CALLBACK(XMLHttpRequestOverrideMimeType)
+DECLARE_CALLBACK(XMLHttpRequestDispatchEvent)
+
+// Custom implementation of XMLHttpRequestUpload properties
+DECLARE_PROPERTY_ACCESSOR(XMLHttpRequestUploadOnabort)
+DECLARE_PROPERTY_ACCESSOR(XMLHttpRequestUploadOnerror)
+DECLARE_PROPERTY_ACCESSOR(XMLHttpRequestUploadOnload)
+DECLARE_PROPERTY_ACCESSOR(XMLHttpRequestUploadOnloadstart)
+DECLARE_PROPERTY_ACCESSOR(XMLHttpRequestUploadOnprogress)
+DECLARE_CALLBACK(XMLHttpRequestUploadAddEventListener)
+DECLARE_CALLBACK(XMLHttpRequestUploadRemoveEventListener)
+DECLARE_CALLBACK(XMLHttpRequestUploadDispatchEvent)
+
+// Custom implementation of TreeWalker functions
+DECLARE_CALLBACK(TreeWalkerParentNode)
+DECLARE_CALLBACK(TreeWalkerFirstChild)
+DECLARE_CALLBACK(TreeWalkerLastChild)
+DECLARE_CALLBACK(TreeWalkerNextNode)
+DECLARE_CALLBACK(TreeWalkerPreviousNode)
+DECLARE_CALLBACK(TreeWalkerNextSibling)
+DECLARE_CALLBACK(TreeWalkerPreviousSibling)
+
+// Custom implementation of InspectorController functions
+DECLARE_CALLBACK(InspectorControllerDebuggerEnabled)
+DECLARE_CALLBACK(InspectorControllerPauseOnExceptions)
+DECLARE_CALLBACK(InspectorControllerProfilerEnabled)
+#if ENABLE(DATABASE)
+DECLARE_CALLBACK(InspectorControllerDatabaseTableNames)
+#endif
+DECLARE_CALLBACK(InspectorControllerWrapCallback)
+
+// Custom implementation of NodeIterator functions
+DECLARE_CALLBACK(NodeIteratorNextNode)
+DECLARE_CALLBACK(NodeIteratorPreviousNode)
+
+// Custom implementation of NodeFilter function
+DECLARE_CALLBACK(NodeFilterAcceptNode)
+
+// Custom implementation of HTMLFormElement
+DECLARE_CALLBACK(HTMLFormElementSubmit)
+
+DECLARE_INDEXED_PROPERTY_GETTER(DOMStringList)
+DECLARE_CALLBACK(DOMStringListItem)
+
+DECLARE_NAMED_PROPERTY_GETTER(DOMWindow)
+DECLARE_INDEXED_PROPERTY_GETTER(DOMWindow)
+DECLARE_NAMED_ACCESS_CHECK(DOMWindow)
+DECLARE_INDEXED_ACCESS_CHECK(DOMWindow)
+
+DECLARE_NAMED_PROPERTY_GETTER(HTMLFrameSetElement)
+DECLARE_NAMED_PROPERTY_GETTER(HTMLFormElement)
+DECLARE_NAMED_PROPERTY_GETTER(NodeList)
+DECLARE_NAMED_PROPERTY_GETTER(NamedNodeMap)
+DECLARE_NAMED_PROPERTY_GETTER(CSSStyleDeclaration)
+DECLARE_NAMED_PROPERTY_SETTER(CSSStyleDeclaration)
+DECLARE_NAMED_PROPERTY_GETTER(HTMLPlugInElement)
+DECLARE_NAMED_PROPERTY_SETTER(HTMLPlugInElement)
+DECLARE_INDEXED_PROPERTY_GETTER(HTMLPlugInElement)
+DECLARE_INDEXED_PROPERTY_SETTER(HTMLPlugInElement)
+
+// Plugin object can be called as function.
+DECLARE_CALLBACK(HTMLPlugInElement)
+
+DECLARE_NAMED_PROPERTY_GETTER(StyleSheetList)
+DECLARE_INDEXED_PROPERTY_GETTER(NamedNodeMap)
+DECLARE_INDEXED_PROPERTY_GETTER(HTMLFormElement)
+DECLARE_INDEXED_PROPERTY_GETTER(HTMLOptionsCollection)
+DECLARE_INDEXED_PROPERTY_SETTER(HTMLOptionsCollection)
+DECLARE_INDEXED_PROPERTY_SETTER(HTMLSelectElementCollection)
+DECLARE_NAMED_PROPERTY_GETTER(HTMLCollection)
+
+// Canvas and supporting classes
+DECLARE_INDEXED_PROPERTY_GETTER(CanvasPixelArray)
+DECLARE_INDEXED_PROPERTY_SETTER(CanvasPixelArray)
+
+// MessagePort
+DECLARE_PROPERTY_ACCESSOR(MessagePortOnmessage)
+DECLARE_PROPERTY_ACCESSOR(MessagePortOnclose)
+DECLARE_CALLBACK(MessagePortStartConversation)
+DECLARE_CALLBACK(MessagePortAddEventListener)
+DECLARE_CALLBACK(MessagePortRemoveEventListener)
+
+// Database
+DECLARE_CALLBACK(DatabaseChangeVersion)
+DECLARE_CALLBACK(DatabaseTransaction)
+DECLARE_CALLBACK(SQLTransactionExecuteSql)
+DECLARE_CALLBACK(SQLResultSetRowListItem)
+
+// SVG custom properties and callbacks
+#if ENABLE(SVG)
+DECLARE_PROPERTY_ACCESSOR_GETTER(SVGLengthValue)
+DECLARE_CALLBACK(SVGLengthConvertToSpecifiedUnits)
+DECLARE_CALLBACK(SVGMatrixInverse)
+DECLARE_CALLBACK(SVGMatrixRotateFromVector)
+DECLARE_CALLBACK(SVGElementInstanceAddEventListener)
+DECLARE_CALLBACK(SVGElementInstanceRemoveEventListener)
+#endif
+
+// Worker
+#if ENABLE(WORKERS)
+DECLARE_PROPERTY_ACCESSOR(WorkerOnmessage)
+DECLARE_PROPERTY_ACCESSOR(WorkerOnerror)
+DECLARE_CALLBACK(WorkerConstructor)
+DECLARE_CALLBACK(WorkerAddEventListener)
+DECLARE_CALLBACK(WorkerRemoveEventListener)
+
+DECLARE_PROPERTY_ACCESSOR_GETTER(WorkerContextSelf)
+DECLARE_PROPERTY_ACCESSOR(WorkerContextOnmessage)
+DECLARE_CALLBACK(WorkerContextImportScripts)
+DECLARE_CALLBACK(WorkerContextSetTimeout)
+DECLARE_CALLBACK(WorkerContextClearTimeout)
+DECLARE_CALLBACK(WorkerContextSetInterval)
+DECLARE_CALLBACK(WorkerContextClearInterval)
+DECLARE_CALLBACK(WorkerContextAddEventListener)
+DECLARE_CALLBACK(WorkerContextRemoveEventListener)
+#endif
+
+// AppCache
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+DECLARE_PROPERTY_ACCESSOR(DOMApplicationCacheEventHandler)
+DECLARE_CALLBACK(DOMApplicationCacheAddEventListener)
+DECLARE_CALLBACK(DOMApplicationCacheRemoveEventListener)
+#endif
+
+#undef DECLARE_INDEXED_ACCESS_CHECK
+#undef DECLARE_NAMED_ACCESS_CHECK
+
+#undef DECLARE_PROPERTY_ACCESSOR_SETTER
+#undef DECLARE_PROPERTY_ACCESSOR_GETTER
+#undef DECLARE_PROPERTY_ACCESSOR
+
+#undef DECLARE_NAMED_PROPERTY_GETTER
+#undef DECLARE_NAMED_PROPERTY_SETTER
+#undef DECLARE_NAMED_PROPERTY_DELETER
+
+#undef DECLARE_INDEXED_PROPERTY_GETTER
+#undef DECLARE_INDEXED_PROPERTY_SETTER
+#undef DECLARE_INDEXED_PROPERTY_DELETER
+
+#undef DECLARE_CALLBACK
+
+  // Returns the NPObject corresponding to an HTMLElement object.
+  static NPObject* GetHTMLPlugInElementNPObject(v8::Handle<v8::Object> object);
+
+  // Returns the owner frame pointer of a DOM wrapper object. It only works for
+  // these DOM objects requiring cross-domain access check.
+  static Frame* GetTargetFrame(v8::Local<v8::Object> host,
+                               v8::Local<v8::Value> data);
+
+  // Special case for downcasting SVG path segments
+#if ENABLE(SVG)
+  static V8ClassIndex::V8WrapperType DowncastSVGPathSeg(void* path_seg);
+#endif
+
+ private:
+  static v8::Handle<v8::Value> WindowSetTimeoutImpl(const v8::Arguments& args,
+                                                    bool single_shot);
+  static void ClearTimeoutImpl(const v8::Arguments& args);
+  static void WindowSetLocation(DOMWindow*, const String&);
+};
+
+}  // namespace WebCore
+
+#endif  // V8_CUSTOM_H__
diff --git a/V8Binding/binding/v8_helpers.cpp b/V8Binding/binding/v8_helpers.cpp
new file mode 100644
index 0000000..7a72ab5
--- /dev/null
+++ b/V8Binding/binding/v8_helpers.cpp
@@ -0,0 +1,59 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "config.h"
+
+#define max max
+#define min min
+#include "v8_helpers.h"
+#include "v8_proxy.h"
+#include "v8_index.h"
+#include "NPV8Object.h"
+
+#include "DOMWindow.h"
+
+using WebCore::V8Custom;
+
+void WrapNPObject(v8::Handle<v8::Object> obj, NPObject* npobj)
+{
+  WebCore::V8Proxy::SetDOMWrapper(obj, WebCore::V8ClassIndex::NPOBJECT, npobj);
+}
+
+v8::Local<v8::Context> getV8Context(NPP npp, NPObject* npobj)
+{
+    V8NPObject* object = reinterpret_cast<V8NPObject*>(npobj);
+    return WebCore::V8Proxy::GetContext(object->rootObject->frame());
+}
+
+WebCore::V8Proxy* GetV8Proxy(NPObject* npobj)
+{
+    V8NPObject* object = reinterpret_cast<V8NPObject*>(npobj);
+    WebCore::Frame* frame = object->rootObject->frame();
+    return WebCore::V8Proxy::retrieve(frame);
+}
diff --git a/V8Binding/binding/v8_helpers.h b/V8Binding/binding/v8_helpers.h
new file mode 100644
index 0000000..b7f15aa
--- /dev/null
+++ b/V8Binding/binding/v8_helpers.h
@@ -0,0 +1,29 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_HELPERS_H__
+#define V8_HELPERS_H__
+
+#if PLATFORM(CHROMIUM)
+#include "third_party/npapi/bindings/npruntime.h"
+#else
+#include "bridge/npruntime.h"  // use WebCore version
+#endif
+
+#include <v8.h>
+
+namespace WebCore {
+  class V8Proxy;
+}
+
+// Associates an NPObject with a V8 object.
+void WrapNPObject(v8::Handle<v8::Object> obj, NPObject *npobj);
+
+// Retrieves the V8 Context from the NP context pr obj (at most 1 may be NULL).
+v8::Local<v8::Context> getV8Context(NPP npp, NPObject* npobj);
+
+// Get V8Proxy object from an NPObject.
+WebCore::V8Proxy* GetV8Proxy(NPObject* npobj);
+
+#endif  // V8_HELPERS_H__
diff --git a/V8Binding/binding/v8_index.cpp b/V8Binding/binding/v8_index.cpp
new file mode 100644
index 0000000..df138dc
--- /dev/null
+++ b/V8Binding/binding/v8_index.cpp
@@ -0,0 +1,431 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "config.h"
+
+#include "v8_index.h"
+
+// TODO: Can we use a macro to include necessary headers by using
+// WRAPPER_TYPES?
+#include "V8Attr.h"
+#include "V8BarInfo.h"
+#include "V8CanvasRenderingContext2D.h"
+#include "V8CanvasGradient.h"
+#include "V8CanvasPattern.h"
+#include "V8CanvasPixelArray.h"
+#include "V8CDATASection.h"
+#include "V8CharacterData.h"
+#include "V8ClientRect.h"
+#include "V8ClientRectList.h"
+#include "V8Clipboard.h"
+#include "V8Comment.h"
+#include "V8Console.h"
+#include "V8Counter.h"
+#include "V8CSSStyleDeclaration.h"
+#include "V8CSSRule.h"
+#include "V8CSSStyleRule.h"
+#include "V8CSSCharsetRule.h"
+#include "V8CSSImportRule.h"
+#include "V8CSSMediaRule.h"
+#include "V8CSSFontFaceRule.h"
+#include "V8CSSPageRule.h"
+#include "V8CSSRuleList.h"
+#include "V8CSSPrimitiveValue.h"
+#include "V8CSSValue.h"
+#include "V8CSSValueList.h"
+#include "V8CSSStyleSheet.h"
+#include "V8CSSVariablesDeclaration.h"
+#include "V8CSSVariablesRule.h"
+#include "V8Document.h"
+#include "V8DocumentFragment.h"
+#include "V8DocumentType.h"
+#include "V8Element.h"
+#include "V8Entity.h"
+#include "V8EntityReference.h"
+#include "V8File.h"
+#include "V8FileList.h"
+#include "V8History.h"
+#include "V8HTMLCanvasElement.h"
+#include "V8UndetectableHTMLCollection.h"
+#include "V8HTMLCollection.h"
+#include "V8HTMLDocument.h"
+#include "V8HTMLElement.h"
+#include "V8HTMLOptionsCollection.h"
+#include "V8HTMLAnchorElement.h"
+#include "V8HTMLAppletElement.h"
+#include "V8HTMLAreaElement.h"
+#include "V8HTMLBaseElement.h"
+#include "V8HTMLBaseFontElement.h"
+#include "V8HTMLBlockquoteElement.h"
+#include "V8HTMLBodyElement.h"
+#include "V8HTMLBRElement.h"
+#include "V8HTMLButtonElement.h"
+#include "V8HTMLCanvasElement.h"
+#include "V8HTMLModElement.h"
+#include "V8HTMLDirectoryElement.h"
+#include "V8HTMLDivElement.h"
+#include "V8HTMLDListElement.h"
+#include "V8HTMLEmbedElement.h"
+#include "V8HTMLFieldSetElement.h"
+#include "V8HTMLFormElement.h"
+#include "V8HTMLFontElement.h"
+#include "V8HTMLFrameElement.h"
+#include "V8HTMLFrameSetElement.h"
+#include "V8HTMLHeadingElement.h"
+#include "V8HTMLHeadElement.h"
+#include "V8HTMLHRElement.h"
+#include "V8HTMLHtmlElement.h"
+#include "V8HTMLIFrameElement.h"
+#include "V8HTMLImageElement.h"
+#include "V8HTMLInputElement.h"
+#include "V8HTMLIsIndexElement.h"
+#include "V8HTMLLabelElement.h"
+#include "V8HTMLLegendElement.h"
+#include "V8HTMLLIElement.h"
+#include "V8HTMLLinkElement.h"
+#include "V8HTMLMapElement.h"
+#include "V8HTMLMarqueeElement.h"
+#include "V8HTMLMenuElement.h"
+#include "V8HTMLMetaElement.h"
+#include "V8HTMLObjectElement.h"
+#include "V8HTMLOListElement.h"
+#include "V8HTMLOptGroupElement.h"
+#include "V8HTMLOptionElement.h"
+#include "V8HTMLParagraphElement.h"
+#include "V8HTMLParamElement.h"
+#include "V8HTMLPreElement.h"
+#include "V8HTMLQuoteElement.h"
+#include "V8HTMLScriptElement.h"
+#include "V8HTMLSelectElement.h"
+#include "V8HTMLStyleElement.h"
+#include "V8HTMLTableCaptionElement.h"
+#include "V8HTMLTableColElement.h"
+#include "V8HTMLTableElement.h"
+#include "V8HTMLTableSectionElement.h"
+#include "V8HTMLTableCellElement.h"
+#include "V8HTMLTableRowElement.h"
+#include "V8HTMLTextAreaElement.h"
+#include "V8HTMLTitleElement.h"
+#include "V8HTMLUListElement.h"
+#include "V8ImageData.h"
+#include "V8MediaList.h"
+#include "V8MessageChannel.h"
+#include "V8MessageEvent.h"
+#include "V8MessagePort.h"
+#include "V8NamedNodeMap.h"
+#include "V8Node.h"
+#include "V8NodeList.h"
+#include "V8NodeFilter.h"
+#include "V8Notation.h"
+#include "V8ProcessingInstruction.h"
+#include "V8ProgressEvent.h"
+#include "V8StyleSheet.h"
+#include "V8Text.h"
+#include "V8TextEvent.h"
+#include "V8DOMCoreException.h"
+#include "V8DOMParser.h"
+#include "V8DOMStringList.h"
+#include "V8DOMWindow.h"
+#include "V8Event.h"
+#include "V8EventException.h"
+#include "V8KeyboardEvent.h"
+#include "V8MouseEvent.h"
+#include "V8WebKitAnimationEvent.h"
+#include "V8WebKitCSSKeyframeRule.h"
+#include "V8WebKitCSSKeyframesRule.h"
+#include "V8WebKitCSSMatrix.h"
+#include "V8WebKitCSSTransformValue.h"
+#include "V8WebKitPoint.h"
+#include "V8WebKitTransitionEvent.h"
+#include "V8WheelEvent.h"
+#include "V8UIEvent.h"
+#include "V8MutationEvent.h"
+#include "V8OverflowEvent.h"
+#include "V8Location.h"
+#include "V8Screen.h"
+#include "V8DOMSelection.h"
+#include "V8Navigator.h"
+#include "V8MimeType.h"
+#include "V8MimeTypeArray.h"
+#include "V8Plugin.h"
+#include "V8PluginArray.h"
+#include "V8Range.h"
+#include "V8RangeException.h"
+#include "V8Rect.h"
+#include "V8NodeIterator.h"
+#include "V8TextMetrics.h"
+#include "V8TreeWalker.h"
+#include "V8StyleSheetList.h"
+#include "V8DOMImplementation.h"
+
+#if ENABLE(XPATH)
+#include "V8XPathResult.h"
+#include "V8XPathException.h"
+#include "V8XPathExpression.h"
+#include "V8XPathNSResolver.h"
+#include "V8XPathEvaluator.h"
+#endif
+#if ENABLE(XSLT)
+#include "V8XSLTProcessor.h"
+#endif
+
+#include "V8XMLHttpRequest.h"
+#include "V8XMLHttpRequestException.h"
+#include "V8XMLHttpRequestProgressEvent.h"
+#include "V8XMLHttpRequestUpload.h"
+#include "V8XMLSerializer.h"
+#include "V8RGBColor.h"
+
+#if PLATFORM(CHROMIUM)
+#include "V8InspectorController.h"
+#endif
+
+#if PLATFORM(CHROMIUM) || ENABLE(DATABASE)
+#include "V8Database.h"
+#include "V8SQLError.h"
+#include "V8SQLResultSet.h"
+#include "V8SQLResultSetRowList.h"
+#include "V8SQLTransaction.h"
+#endif
+
+#if ENABLE(SVG_ANIMATION)
+#include "V8SVGAnimateColorElement.h"
+#include "V8SVGAnimateElement.h"
+#include "V8SVGAnimateTransformElement.h"
+#include "V8SVGAnimationElement.h"
+#include "V8SVGSetElement.h"
+#endif
+
+#if ENABLE(SVG_FILTERS)
+#include "V8SVGComponentTransferFunctionElement.h"
+#include "V8SVGFEBlendElement.h"
+#include "V8SVGFEColorMatrixElement.h"
+#include "V8SVGFEComponentTransferElement.h"
+#include "V8SVGFECompositeElement.h"
+#include "V8SVGFEDiffuseLightingElement.h"
+#include "V8SVGFEDisplacementMapElement.h"
+#include "V8SVGFEDistantLightElement.h"
+#include "V8SVGFEFloodElement.h"
+#include "V8SVGFEFuncAElement.h"
+#include "V8SVGFEFuncBElement.h"
+#include "V8SVGFEFuncGElement.h"
+#include "V8SVGFEFuncRElement.h"
+#include "V8SVGFEGaussianBlurElement.h"
+#include "V8SVGFEImageElement.h"
+#include "V8SVGFEMergeElement.h"
+#include "V8SVGFEMergeNodeElement.h"
+#include "V8SVGFEOffsetElement.h"
+#include "V8SVGFEPointLightElement.h"
+#include "V8SVGFESpecularLightingElement.h"
+#include "V8SVGFESpotLightElement.h"
+#include "V8SVGFETileElement.h"
+#include "V8SVGFETurbulenceElement.h"
+#include "V8SVGFilterElement.h"
+#endif
+
+#if ENABLE(SVG_FONTS)
+#include "V8SVGDefinitionSrcElement.h"
+#include "V8SVGFontFaceElement.h"
+#include "V8SVGFontFaceFormatElement.h"
+#include "V8SVGFontFaceNameElement.h"
+#include "V8SVGFontFaceSrcElement.h"
+#include "V8SVGFontFaceUriElement.h"
+#endif
+
+#if ENABLE(SVG_FOREIGN_OBJECT)
+#include "V8SVGForeignObjectElement.h"
+#endif
+
+#if ENABLE(SVG_USE)
+#include "V8SVGUseElement.h"
+#endif
+
+#if ENABLE(SVG)
+#include "V8SVGAElement.h"
+#include "V8SVGAltGlyphElement.h"
+#include "V8SVGCircleElement.h"
+#include "V8SVGClipPathElement.h"
+#include "V8SVGCursorElement.h"
+#include "V8SVGDefsElement.h"
+#include "V8SVGDescElement.h"
+#include "V8SVGElement.h"
+#include "V8SVGEllipseElement.h"
+#include "V8SVGException.h"
+#include "V8SVGGElement.h"
+#include "V8SVGGlyphElement.h"
+#include "V8SVGGradientElement.h"
+#include "V8SVGImageElement.h"
+#include "V8SVGLinearGradientElement.h"
+#include "V8SVGLineElement.h"
+#include "V8SVGMarkerElement.h"
+#include "V8SVGMaskElement.h"
+#include "V8SVGMetadataElement.h"
+#include "V8SVGPathElement.h"
+#include "V8SVGPatternElement.h"
+#include "V8SVGPolygonElement.h"
+#include "V8SVGPolylineElement.h"
+#include "V8SVGRadialGradientElement.h"
+#include "V8SVGRectElement.h"
+#include "V8SVGScriptElement.h"
+#include "V8SVGStopElement.h"
+#include "V8SVGStyleElement.h"
+#include "V8SVGSVGElement.h"
+#include "V8SVGSwitchElement.h"
+#include "V8SVGSymbolElement.h"
+#include "V8SVGTextContentElement.h"
+#include "V8SVGTextElement.h"
+#include "V8SVGTextPathElement.h"
+#include "V8SVGTextPositioningElement.h"
+#include "V8SVGTitleElement.h"
+#include "V8SVGTRefElement.h"
+#include "V8SVGTSpanElement.h"
+#include "V8SVGViewElement.h"
+#include "V8SVGAngle.h"
+#include "V8SVGAnimatedAngle.h"
+#include "V8SVGAnimatedBoolean.h"
+#include "V8SVGAnimatedEnumeration.h"
+#include "V8SVGAnimatedInteger.h"
+#include "V8SVGAnimatedLength.h"
+#include "V8SVGAnimatedLengthList.h"
+#include "V8SVGAnimatedNumber.h"
+#include "V8SVGAnimatedNumberList.h"
+#include "V8SVGAnimatedPoints.h"
+#include "V8SVGAnimatedPreserveAspectRatio.h"
+#include "V8SVGAnimatedRect.h"
+#include "V8SVGAnimatedString.h"
+#include "V8SVGAnimatedTransformList.h"
+#include "V8SVGColor.h"
+#include "V8SVGDocument.h"
+#include "V8SVGElementInstance.h"
+#include "V8SVGElementInstanceList.h"
+#include "V8SVGLength.h"
+#include "V8SVGLengthList.h"
+#include "V8SVGMatrix.h"
+#include "V8SVGNumber.h"
+#include "V8SVGNumberList.h"
+#include "V8SVGPaint.h"
+#include "V8SVGPathSeg.h"
+#include "V8SVGPathSegArcAbs.h"
+#include "V8SVGPathSegArcRel.h"
+#include "V8SVGPathSegClosePath.h"
+#include "V8SVGPathSegCurvetoCubicAbs.h"
+#include "V8SVGPathSegCurvetoCubicRel.h"
+#include "V8SVGPathSegCurvetoCubicSmoothAbs.h"
+#include "V8SVGPathSegCurvetoCubicSmoothRel.h"
+#include "V8SVGPathSegCurvetoQuadraticAbs.h"
+#include "V8SVGPathSegCurvetoQuadraticRel.h"
+#include "V8SVGPathSegCurvetoQuadraticSmoothAbs.h"
+#include "V8SVGPathSegCurvetoQuadraticSmoothRel.h"
+#include "V8SVGPathSegLinetoAbs.h"
+#include "V8SVGPathSegLinetoHorizontalAbs.h"
+#include "V8SVGPathSegLinetoHorizontalRel.h"
+#include "V8SVGPathSegLinetoRel.h"
+#include "V8SVGPathSegLinetoVerticalAbs.h"
+#include "V8SVGPathSegLinetoVerticalRel.h"
+#include "V8SVGPathSegList.h"
+#include "V8SVGPathSegMovetoAbs.h"
+#include "V8SVGPathSegMovetoRel.h"
+#include "V8SVGPoint.h"
+#include "V8SVGPointList.h"
+#include "V8SVGPreserveAspectRatio.h"
+#include "V8SVGRect.h"
+#include "V8SVGRenderingIntent.h"
+#include "V8SVGStringList.h"
+#include "V8SVGTransform.h"
+#include "V8SVGTransformList.h"
+#include "V8SVGUnitTypes.h"
+#include "V8SVGURIReference.h"
+#include "V8SVGZoomEvent.h"
+#endif
+
+#if ENABLE(VIDEO)
+#include "V8HTMLAudioElement.h"
+#include "V8HTMLMediaElement.h"
+#include "V8HTMLSourceElement.h"
+#include "V8HTMLVideoElement.h"
+#include "V8MediaError.h"
+#include "V8TimeRanges.h"
+#endif
+
+#if ENABLE(WORKERS)
+#include "V8Worker.h"
+#include "V8WorkerContext.h"
+#include "V8WorkerLocation.h"
+#include "V8WorkerNavigator.h"
+#endif
+
+#if PLATFORM(ANDROID)
+#include "V8Coordinates.h"
+#include "V8Geolocation.h"
+#include "V8Geoposition.h"
+#include "V8PositionError.h"
+#include "V8PositionErrorCallback.h"
+#include "V8Touch.h"
+#include "V8TouchList.h"
+#include "V8TouchEvent.h"
+#include "V8VoidCallback.h"
+#endif
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+#include "V8DOMApplicationCache.h"
+#endif
+
+namespace WebCore {
+
+FunctionTemplateFactory V8ClassIndex::GetFactory(V8WrapperType type) {
+  switch (type) {
+#define MAKE_CASE(type, name)\
+    case V8ClassIndex::type: return V8##name::GetTemplate;
+    WRAPPER_TYPES(MAKE_CASE)
+#undef MAKE_CASE
+    default: return NULL;
+  }
+}
+
+
+#define MAKE_CACHE(type, name)\
+  static v8::Persistent<v8::FunctionTemplate> name##_cache_;
+  ALL_WRAPPER_TYPES(MAKE_CACHE)
+#undef MAKE_CACHE
+
+
+v8::Persistent<v8::FunctionTemplate>* V8ClassIndex::GetCache(
+    V8WrapperType type) {
+  switch (type) {
+#define MAKE_CASE(type, name)\
+    case V8ClassIndex::type: return &name##_cache_;
+    ALL_WRAPPER_TYPES(MAKE_CASE)
+#undef MAKE_CASE
+    default:
+      ASSERT(false);
+      return NULL;
+  }
+}
+
+}  // namespace WebCore
diff --git a/V8Binding/binding/v8_index.h b/V8Binding/binding/v8_index.h
new file mode 100644
index 0000000..71453c3
--- /dev/null
+++ b/V8Binding/binding/v8_index.h
@@ -0,0 +1,523 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_INDEX_H__
+#define V8_INDEX_H__
+
+#include <v8.h>
+#include "PlatformString.h"  // for WebCore::String
+
+namespace WebCore {
+
+typedef v8::Persistent<v8::FunctionTemplate> (*FunctionTemplateFactory)();
+
+#if ENABLE(VIDEO)
+#define VIDEO_HTMLELEMENT_TYPES(V)                                      \
+  V(HTMLAUDIOELEMENT, HTMLAudioElement)                                 \
+  V(HTMLMEDIAELEMENT, HTMLMediaElement)                                 \
+  V(HTMLSOURCEELEMENT, HTMLSourceElement)                               \
+  V(HTMLVIDEOELEMENT, HTMLVideoElement)
+#define VIDEO_NONNODE_TYPES(V)                                          \
+  V(MEDIAERROR, MediaError)                                             \
+  V(TIMERANGES, TimeRanges)
+#else
+#define VIDEO_HTMLELEMENT_TYPES(V)
+#define VIDEO_NONNODE_TYPES(V)
+#endif
+
+#if ENABLE(WORKERS)
+#define WORKER_ACTIVE_OBJECT_WRAPPER_TYPES(V)                           \
+  V(WORKER, Worker)
+
+#define WORKER_NONNODE_WRAPPER_TYPES(V)                                 \
+  V(WORKERCONTEXT, WorkerContext)                                       \
+  V(WORKERLOCATION, WorkerLocation)                                     \
+  V(WORKERNAVIGATOR, WorkerNavigator)
+#else
+#define WORKER_ACTIVE_OBJECT_WRAPPER_TYPES(V)
+#define WORKER_NONNODE_WRAPPER_TYPES(V)
+#endif
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+#define APPLICATIONCACHE_NONNODE_WRAPPER_TYPES(V)                      \
+  V(DOMAPPLICATIONCACHE, DOMApplicationCache)
+#else
+#define APPLICATIONCACHE_NONNODE_WRAPPER_TYPES(V)
+#endif
+
+#define DOM_NODE_TYPES(V)                                               \
+  V(ATTR, Attr)                                                         \
+  V(CHARACTERDATA, CharacterData)                                       \
+  V(CDATASECTION, CDATASection)                                         \
+  V(COMMENT, Comment)                                                   \
+  V(DOCUMENT, Document)                                                 \
+  V(DOCUMENTFRAGMENT, DocumentFragment)                                 \
+  V(DOCUMENTTYPE, DocumentType)                                         \
+  V(ELEMENT, Element)                                                   \
+  V(ENTITY, Entity)                                                     \
+  V(ENTITYREFERENCE, EntityReference)                                   \
+  V(HTMLDOCUMENT, HTMLDocument)                                         \
+  V(NODE, Node)                                                         \
+  V(NOTATION, Notation)                                                 \
+  V(PROCESSINGINSTRUCTION, ProcessingInstruction)                       \
+  V(TEXT, Text)                                                         \
+    \
+  V(HTMLANCHORELEMENT, HTMLAnchorElement)                               \
+  V(HTMLAPPLETELEMENT, HTMLAppletElement)                               \
+  V(HTMLAREAELEMENT, HTMLAreaElement)                                   \
+  V(HTMLBASEELEMENT, HTMLBaseElement)                                   \
+  V(HTMLBASEFONTELEMENT, HTMLBaseFontElement)                           \
+  V(HTMLBLOCKQUOTEELEMENT, HTMLBlockquoteElement)                       \
+  V(HTMLBODYELEMENT, HTMLBodyElement)                                   \
+  V(HTMLBRELEMENT, HTMLBRElement)                                       \
+  V(HTMLBUTTONELEMENT, HTMLButtonElement)                               \
+  V(HTMLCANVASELEMENT, HTMLCanvasElement)                               \
+  V(HTMLDIRECTORYELEMENT, HTMLDirectoryElement)                         \
+  V(HTMLDIVELEMENT, HTMLDivElement)                                     \
+  V(HTMLDLISTELEMENT, HTMLDListElement)                                 \
+  V(HTMLEMBEDELEMENT, HTMLEmbedElement)                                 \
+  V(HTMLFIELDSETELEMENT, HTMLFieldSetElement)                           \
+  V(HTMLFONTELEMENT, HTMLFontElement)                                   \
+  V(HTMLFORMELEMENT, HTMLFormElement)                                   \
+  V(HTMLFRAMEELEMENT, HTMLFrameElement)                                 \
+  V(HTMLFRAMESETELEMENT, HTMLFrameSetElement)                           \
+  V(HTMLHEADINGELEMENT, HTMLHeadingElement)                             \
+  V(HTMLHEADELEMENT, HTMLHeadElement)                                   \
+  V(HTMLHRELEMENT, HTMLHRElement)                                       \
+  V(HTMLHTMLELEMENT, HTMLHtmlElement)                                   \
+  V(HTMLIFRAMEELEMENT, HTMLIFrameElement)                               \
+  V(HTMLIMAGEELEMENT, HTMLImageElement)                                 \
+  V(HTMLINPUTELEMENT, HTMLInputElement)                                 \
+  V(HTMLISINDEXELEMENT, HTMLIsIndexElement)                             \
+  V(HTMLLABELELEMENT, HTMLLabelElement)                                 \
+  V(HTMLLEGENDELEMENT, HTMLLegendElement)                               \
+  V(HTMLLIELEMENT, HTMLLIElement)                                       \
+  V(HTMLLINKELEMENT, HTMLLinkElement)                                   \
+  V(HTMLMAPELEMENT, HTMLMapElement)                                     \
+  V(HTMLMARQUEEELEMENT, HTMLMarqueeElement)                             \
+  V(HTMLMENUELEMENT, HTMLMenuElement)                                   \
+  V(HTMLMETAELEMENT, HTMLMetaElement)                                   \
+  V(HTMLMODELEMENT, HTMLModElement)                                     \
+  V(HTMLOBJECTELEMENT, HTMLObjectElement)                               \
+  V(HTMLOLISTELEMENT, HTMLOListElement)                                 \
+  V(HTMLOPTGROUPELEMENT, HTMLOptGroupElement)                           \
+  V(HTMLOPTIONELEMENT, HTMLOptionElement)                               \
+  V(HTMLPARAGRAPHELEMENT, HTMLParagraphElement)                         \
+  V(HTMLPARAMELEMENT, HTMLParamElement)                                 \
+  V(HTMLPREELEMENT, HTMLPreElement)                                     \
+  V(HTMLQUOTEELEMENT, HTMLQuoteElement)                                 \
+  V(HTMLSCRIPTELEMENT, HTMLScriptElement)                               \
+  V(HTMLSELECTELEMENT, HTMLSelectElement)                               \
+  V(HTMLSTYLEELEMENT, HTMLStyleElement)                                 \
+  V(HTMLTABLECAPTIONELEMENT, HTMLTableCaptionElement)                   \
+  V(HTMLTABLECOLELEMENT, HTMLTableColElement)                           \
+  V(HTMLTABLEELEMENT, HTMLTableElement)                                 \
+  V(HTMLTABLESECTIONELEMENT, HTMLTableSectionElement)                   \
+  V(HTMLTABLECELLELEMENT, HTMLTableCellElement)                         \
+  V(HTMLTABLEROWELEMENT, HTMLTableRowElement)                           \
+  V(HTMLTEXTAREAELEMENT, HTMLTextAreaElement)                           \
+  V(HTMLTITLEELEMENT, HTMLTitleElement)                                 \
+  V(HTMLULISTELEMENT, HTMLUListElement)                                 \
+  V(HTMLELEMENT, HTMLElement)                                           \
+  VIDEO_HTMLELEMENT_TYPES(V)
+
+#if ENABLE(SVG_ANIMATION)
+#define SVG_ANIMATION_ELEMENT_TYPES(V)                                  \
+  V(SVGANIMATECOLORELEMENT, SVGAnimateColorElement)                     \
+  V(SVGANIMATEELEMENT, SVGAnimateElement)                               \
+  V(SVGANIMATETRANSFORMELEMENT, SVGAnimateTransformElement)             \
+  V(SVGANIMATIONELEMENT, SVGAnimationElement)                           \
+  V(SVGSETELEMENT, SVGSetElement)
+#else
+#define SVG_ANIMATION_ELEMENT_TYPES(V)
+#endif
+
+#if ENABLE(SVG_FILTERS)
+#define SVG_FILTERS_ELEMENT_TYPES(V)                                     \
+  V(SVGCOMPONENTTRANSFERFUNCTIONELEMENT, SVGComponentTransferFunctionElement)\
+  V(SVGFEBLENDELEMENT, SVGFEBlendElement)                               \
+  V(SVGFECOLORMATRIXELEMENT, SVGFEColorMatrixElement)                   \
+  V(SVGFECOMPONENTTRANSFERELEMENT, SVGFEComponentTransferElement)       \
+  V(SVGFECOMPOSITEELEMENT, SVGFECompositeElement)                       \
+  V(SVGFEDIFFUSELIGHTINGELEMENT, SVGFEDiffuseLightingElement)           \
+  V(SVGFEDISPLACEMENTMAPELEMENT, SVGFEDisplacementMapElement)           \
+  V(SVGFEDISTANTLIGHTELEMENT, SVGFEDistantLightElement)                 \
+  V(SVGFEFLOODELEMENT, SVGFEFloodElement)                               \
+  V(SVGFEFUNCAELEMENT, SVGFEFuncAElement)                               \
+  V(SVGFEFUNCBELEMENT, SVGFEFuncBElement)                               \
+  V(SVGFEFUNCGELEMENT, SVGFEFuncGElement)                               \
+  V(SVGFEFUNCRELEMENT, SVGFEFuncRElement)                               \
+  V(SVGFEGAUSSIANBLURELEMENT, SVGFEGaussianBlurElement)                 \
+  V(SVGFEIMAGEELEMENT, SVGFEImageElement)                               \
+  V(SVGFEMERGEELEMENT, SVGFEMergeElement)                               \
+  V(SVGFEMERGENODEELEMENT, SVGFEMergeNodeElement)                       \
+  V(SVGFEOFFSETELEMENT, SVGFEOffsetElement)                             \
+  V(SVGFEPOINTLIGHTELEMENT, SVGFEPointLightElement)                     \
+  V(SVGFESPECULARLIGHTINGELEMENT, SVGFESpecularLightingElement)         \
+  V(SVGFESPOTLIGHTELEMENT, SVGFESpotLightElement)                       \
+  V(SVGFETILEELEMENT, SVGFETileElement)                                 \
+  V(SVGFETURBULENCEELEMENT, SVGFETurbulenceElement)                     \
+  V(SVGFILTERELEMENT, SVGFilterElement)
+#else
+#define SVG_FILTERS_ELEMENT_TYPES(V)
+#endif
+
+#if ENABLE(SVG_FONTS)
+#define SVG_FONTS_ELEMENT_TYPES(V)                                      \
+  V(SVGDEFINITIONSRCELEMENT, SVGDefinitionSrcElement)                   \
+  V(SVGFONTFACEELEMENT, SVGFontFaceElement)                             \
+  V(SVGFONTFACEFORMATELEMENT, SVGFontFaceFormatElement)                 \
+  V(SVGFONTFACENAMEELEMENT, SVGFontFaceNameElement)                     \
+  V(SVGFONTFACESRCELEMENT, SVGFontFaceSrcElement)                       \
+  V(SVGFONTFACEURIELEMENT, SVGFontFaceUriElement)
+#else
+#define SVG_FONTS_ELEMENT_TYPES(V)
+#endif
+
+#if ENABLE(SVG_FOREIGN_OBJECT)
+#define SVG_FOREIGN_OBJECT_ELEMENT_TYPES(V)                             \
+  V(SVGFOREIGNOBJECTELEMENT, SVGForeignObjectElement)
+#else
+#define SVG_FOREIGN_OBJECT_ELEMENT_TYPES(V)
+#endif
+
+#if ENABLE(SVG_USE)
+#define SVG_USE_ELEMENT_TYPES(V)                                        \
+  V(SVGUSEELEMENT, SVGUseElement)
+#else
+#define SVG_USE_ELEMENT_TYPES(V)
+#endif
+
+#if ENABLE(SVG)
+#define SVG_NODE_TYPES(V)                                               \
+  SVG_ANIMATION_ELEMENT_TYPES(V)                                        \
+  SVG_FILTERS_ELEMENT_TYPES(V)                                          \
+  SVG_FONTS_ELEMENT_TYPES(V)                                            \
+  SVG_FOREIGN_OBJECT_ELEMENT_TYPES(V)                                   \
+  SVG_USE_ELEMENT_TYPES(V)                                              \
+  V(SVGAELEMENT, SVGAElement)                                           \
+  V(SVGALTGLYPHELEMENT, SVGAltGlyphElement)                             \
+  V(SVGCIRCLEELEMENT, SVGCircleElement)                                 \
+  V(SVGCLIPPATHELEMENT, SVGClipPathElement)                             \
+  V(SVGCURSORELEMENT, SVGCursorElement)                                 \
+  V(SVGDEFSELEMENT, SVGDefsElement)                                     \
+  V(SVGDESCELEMENT, SVGDescElement)                                     \
+  V(SVGELLIPSEELEMENT, SVGEllipseElement)                               \
+  V(SVGGELEMENT, SVGGElement)                                           \
+  V(SVGGLYPHELEMENT, SVGGlyphElement)                                   \
+  V(SVGGRADIENTELEMENT, SVGGradientElement)                             \
+  V(SVGIMAGEELEMENT, SVGImageElement)                                   \
+  V(SVGLINEARGRADIENTELEMENT, SVGLinearGradientElement)                 \
+  V(SVGLINEELEMENT, SVGLineElement)                                     \
+  V(SVGMARKERELEMENT, SVGMarkerElement)                                 \
+  V(SVGMASKELEMENT, SVGMaskElement)                                     \
+  V(SVGMETADATAELEMENT, SVGMetadataElement)                             \
+  V(SVGPATHELEMENT, SVGPathElement)                                     \
+  V(SVGPATTERNELEMENT, SVGPatternElement)                               \
+  V(SVGPOLYGONELEMENT, SVGPolygonElement)                               \
+  V(SVGPOLYLINEELEMENT, SVGPolylineElement)                             \
+  V(SVGRADIALGRADIENTELEMENT, SVGRadialGradientElement)                 \
+  V(SVGRECTELEMENT, SVGRectElement)                                     \
+  V(SVGSCRIPTELEMENT, SVGScriptElement)                                 \
+  V(SVGSTOPELEMENT, SVGStopElement)                                     \
+  V(SVGSTYLEELEMENT, SVGStyleElement)                                   \
+  V(SVGSVGELEMENT, SVGSVGElement)                                       \
+  V(SVGSWITCHELEMENT, SVGSwitchElement)                                 \
+  V(SVGSYMBOLELEMENT, SVGSymbolElement)                                 \
+  V(SVGTEXTCONTENTELEMENT, SVGTextContentElement)                       \
+  V(SVGTEXTELEMENT, SVGTextElement)                                     \
+  V(SVGTEXTPATHELEMENT, SVGTextPathElement)                             \
+  V(SVGTEXTPOSITIONINGELEMENT, SVGTextPositioningElement)               \
+  V(SVGTITLEELEMENT, SVGTitleElement)                                   \
+  V(SVGTREFELEMENT, SVGTRefElement)                                     \
+  V(SVGTSPANELEMENT, SVGTSpanElement)                                   \
+  V(SVGVIEWELEMENT, SVGViewElement)                                     \
+  V(SVGELEMENT, SVGElement)                                             \
+    \
+  V(SVGDOCUMENT, SVGDocument)
+#endif  // SVG
+
+
+// ACTIVE_DOM_OBJECT_TYPES are DOM_OBJECT_TYPES that need special treatement
+// during GC.
+#define ACTIVE_DOM_OBJECT_TYPES(V)                                      \
+  V(MESSAGEPORT, MessagePort)                                           \
+  V(XMLHTTPREQUEST, XMLHttpRequest)                                     \
+  WORKER_ACTIVE_OBJECT_WRAPPER_TYPES(V)
+
+// NOTE: DOM_OBJECT_TYPES is split into two halves because
+//       Visual Studio's Intellinonsense crashes when macros get
+//       too large.  10-29-08
+// DOM_OBJECT_TYPES are non-node DOM types.
+#define DOM_OBJECT_TYPES_1(V)                                           \
+  V(BARINFO, BarInfo)                                                   \
+  V(CANVASGRADIENT, CanvasGradient)                                     \
+  V(CANVASPATTERN, CanvasPattern)                                       \
+  V(CANVASRENDERINGCONTEXT2D, CanvasRenderingContext2D)                 \
+  V(CLIENTRECT, ClientRect)                                             \
+  V(CLIENTRECTLIST, ClientRectList)                                     \
+  V(CLIPBOARD, Clipboard)                                               \
+  V(CONSOLE, Console)                                                   \
+  V(COUNTER, Counter)                                                   \
+  V(CSSCHARSETRULE, CSSCharsetRule)                                     \
+  V(CSSFONTFACERULE, CSSFontFaceRule)                                   \
+  V(CSSIMPORTRULE, CSSImportRule)                                       \
+  V(CSSMEDIARULE, CSSMediaRule)                                         \
+  V(CSSPAGERULE, CSSPageRule)                                           \
+  V(CSSPRIMITIVEVALUE, CSSPrimitiveValue)                               \
+  V(CSSRULE, CSSRule)                                                   \
+  V(CSSRULELIST, CSSRuleList)                                           \
+  V(CSSSTYLEDECLARATION, CSSStyleDeclaration)                           \
+  V(CSSSTYLERULE, CSSStyleRule)                                         \
+  V(CSSSTYLESHEET, CSSStyleSheet)                                       \
+  V(CSSVALUE, CSSValue)                                                 \
+  V(CSSVALUELIST, CSSValueList)                                         \
+  V(CSSVARIABLESDECLARATION, CSSVariablesDeclaration)                   \
+  V(CSSVARIABLESRULE, CSSVariablesRule)                                 \
+  V(DOMCOREEXCEPTION, DOMCoreException)                                 \
+  V(DOMIMPLEMENTATION, DOMImplementation)                               \
+  V(DOMPARSER, DOMParser)                                               \
+  V(DOMSELECTION, DOMSelection)                                         \
+  V(DOMSTRINGLIST, DOMStringList)                                       \
+  V(DOMWINDOW, DOMWindow)                                               \
+  V(EVENT, Event)                                                       \
+  V(EVENTEXCEPTION, EventException)                                     \
+  V(FILE, File)                                                         \
+  V(FILELIST, FileList)                                                 \
+  V(HISTORY, History)                                                   \
+  V(UNDETECTABLEHTMLCOLLECTION, UndetectableHTMLCollection)             \
+  V(HTMLCOLLECTION, HTMLCollection)                                     \
+  V(HTMLOPTIONSCOLLECTION, HTMLOptionsCollection)                       \
+  V(IMAGEDATA, ImageData)                                               \
+  V(CANVASPIXELARRAY, CanvasPixelArray)                                 \
+  V(KEYBOARDEVENT, KeyboardEvent)                                       \
+  V(LOCATION, Location)                                                 \
+  V(MEDIALIST, MediaList)
+
+#define DOM_OBJECT_TYPES_2(V)                                           \
+  V(MESSAGECHANNEL, MessageChannel)                                     \
+  V(MESSAGEEVENT, MessageEvent)                                         \
+  V(MIMETYPE, MimeType)                                                 \
+  V(MIMETYPEARRAY, MimeTypeArray)                                       \
+  V(MOUSEEVENT, MouseEvent)                                             \
+  V(MUTATIONEVENT, MutationEvent)                                       \
+  V(NAMEDNODEMAP, NamedNodeMap)                                         \
+  V(NAVIGATOR, Navigator)                                               \
+  V(NODEFILTER, NodeFilter)                                             \
+  V(NODEITERATOR, NodeIterator)                                         \
+  V(NODELIST, NodeList)                                                 \
+  V(OVERFLOWEVENT, OverflowEvent)                                       \
+  V(PLUGIN, Plugin)                                                     \
+  V(PLUGINARRAY, PluginArray)                                           \
+  V(PROGRESSEVENT, ProgressEvent)                                       \
+  V(RANGE, Range)                                                       \
+  V(RANGEEXCEPTION, RangeException)                                     \
+  V(RECT, Rect)                                                         \
+  V(RGBCOLOR, RGBColor)                                                 \
+  V(SCREEN, Screen)                                                     \
+  V(STYLESHEET, StyleSheet)                                             \
+  V(STYLESHEETLIST, StyleSheetList)                                     \
+  V(TEXTEVENT, TextEvent)                                               \
+  V(TEXTMETRICS, TextMetrics)                                           \
+  V(TREEWALKER, TreeWalker)                                             \
+  V(UIEVENT, UIEvent)                                                   \
+  V(WEBKITANIMATIONEVENT, WebKitAnimationEvent)                         \
+  V(WEBKITCSSKEYFRAMERULE, WebKitCSSKeyframeRule)                       \
+  V(WEBKITCSSKEYFRAMESRULE, WebKitCSSKeyframesRule)                     \
+  V(WEBKITCSSMATRIX, WebKitCSSMatrix)                                   \
+  V(WEBKITPOINT, WebKitPoint)                                           \
+  V(WEBKITCSSTRANSFORMVALUE, WebKitCSSTransformValue)                   \
+  V(WEBKITTRANSITIONEVENT, WebKitTransitionEvent)                       \
+  V(WHEELEVENT, WheelEvent)                                             \
+  V(XMLHTTPREQUESTUPLOAD, XMLHttpRequestUpload)                         \
+  V(XMLHTTPREQUESTEXCEPTION, XMLHttpRequestException)                   \
+  V(XMLHTTPREQUESTPROGRESSEVENT, XMLHttpRequestProgressEvent)           \
+  V(XMLSERIALIZER, XMLSerializer)                                       \
+  ACTIVE_DOM_OBJECT_TYPES(V)                                            \
+  APPLICATIONCACHE_NONNODE_WRAPPER_TYPES(V)                             \
+  VIDEO_NONNODE_TYPES(V)                                                \
+  WORKER_NONNODE_WRAPPER_TYPES(V)
+
+#define DOM_OBJECT_XPATH_TYPES(V)                                       \
+  V(XPATHEVALUATOR, XPathEvaluator)                                     \
+  V(XPATHEXCEPTION, XPathException)                                     \
+  V(XPATHEXPRESSION, XPathExpression)                                   \
+  V(XPATHNSRESOLVER, XPathNSResolver)                                   \
+  V(XPATHRESULT, XPathResult)
+
+#if ENABLE(DATABASE)
+#define DOM_OBJECT_DATABASE_TYPES(V)                                    \
+  V(DATABASE, Database)                                                 \
+  V(SQLERROR, SQLError)                                                 \
+  V(SQLRESULTSET, SQLResultSet)                                         \
+  V(SQLRESULTSETROWLIST, SQLResultSetRowList)                           \
+  V(SQLTRANSACTION, SQLTransaction)
+#else
+#define DOM_OBJECT_DATABASE_TYPES(V)
+#endif
+
+#if PLATFORM(CHROMIUM)
+#define DOM_OBJECT_TYPES(V)                                             \
+  DOM_OBJECT_TYPES_1(V)                                                 \
+  DOM_OBJECT_TYPES_2(V)                                                 \
+  DOM_OBJECT_DATABASE_TYPES(V)                                          \
+  DOM_OBJECT_XPATH_TYPES(V)                                             \
+  V(XSLTPROCESSOR, XSLTProcessor)                                       \
+  V(INSPECTORCONTROLLER, InspectorController)
+#endif
+
+#if PLATFORM(ANDROID)
+#define DOM_OBJECT_TYPES(V)                                             \
+  DOM_OBJECT_TYPES_1(V)                                                 \
+  DOM_OBJECT_TYPES_2(V)                                                 \
+  DOM_OBJECT_DATABASE_TYPES(V)                                          \
+  V(COORDINATES, Coordinates)                                           \
+  V(GEOLOCATION, Geolocation)                                           \
+  V(GEOPOSITION, Geoposition)                                           \
+  V(POSITIONERROR, PositionError)                                       \
+  V(POSITIONERRORCALLBACK, PositionErrorCallback)                       \
+  V(TOUCHLIST, TouchList)                                               \
+  V(TOUCHEVENT, TouchEvent)                                             \
+  V(TOUCH, Touch)                                                       \
+  V(VOIDCALLBACK, VoidCallback)
+#endif
+
+// Other platform must define DOM_OBJECT_TYPES
+
+#if ENABLE(SVG)
+// SVG_OBJECT_TYPES are svg non-node, non-pod types.
+#define SVG_OBJECT_TYPES(V)                                             \
+  V(SVGANGLE, SVGAngle)                                                 \
+  V(SVGANIMATEDANGLE, SVGAnimatedAngle)                                 \
+  V(SVGANIMATEDBOOLEAN, SVGAnimatedBoolean)                             \
+  V(SVGANIMATEDENUMERATION, SVGAnimatedEnumeration)                     \
+  V(SVGANIMATEDINTEGER, SVGAnimatedInteger)                             \
+  V(SVGANIMATEDLENGTH, SVGAnimatedLength)                               \
+  V(SVGANIMATEDLENGTHLIST, SVGAnimatedLengthList)                       \
+  V(SVGANIMATEDNUMBER, SVGAnimatedNumber)                               \
+  V(SVGANIMATEDNUMBERLIST, SVGAnimatedNumberList)                       \
+  V(SVGANIMATEDPRESERVEASPECTRATIO, SVGAnimatedPreserveAspectRatio)     \
+  V(SVGANIMATEDRECT, SVGAnimatedRect)                                   \
+  V(SVGANIMATEDSTRING, SVGAnimatedString)                               \
+  V(SVGANIMATEDTRANSFORMLIST, SVGAnimatedTransformList)                 \
+  V(SVGCOLOR, SVGColor)                                                 \
+  V(SVGELEMENTINSTANCE, SVGElementInstance)                             \
+  V(SVGELEMENTINSTANCELIST, SVGElementInstanceList)                     \
+  V(SVGEXCEPTION, SVGException)                                         \
+  V(SVGLENGTHLIST, SVGLengthList)                                       \
+  V(SVGNUMBERLIST, SVGNumberList)                                       \
+  V(SVGPAINT, SVGPaint)                                                 \
+  V(SVGPATHSEG, SVGPathSeg)                                             \
+  V(SVGPATHSEGARCABS, SVGPathSegArcAbs)                                 \
+  V(SVGPATHSEGARCREL, SVGPathSegArcRel)                                 \
+  V(SVGPATHSEGCLOSEPATH, SVGPathSegClosePath)                           \
+  V(SVGPATHSEGCURVETOCUBICABS, SVGPathSegCurvetoCubicAbs)               \
+  V(SVGPATHSEGCURVETOCUBICREL, SVGPathSegCurvetoCubicRel)               \
+  V(SVGPATHSEGCURVETOCUBICSMOOTHABS, SVGPathSegCurvetoCubicSmoothAbs)   \
+  V(SVGPATHSEGCURVETOCUBICSMOOTHREL, SVGPathSegCurvetoCubicSmoothRel)   \
+  V(SVGPATHSEGCURVETOQUADRATICABS, SVGPathSegCurvetoQuadraticAbs)       \
+  V(SVGPATHSEGCURVETOQUADRATICREL, SVGPathSegCurvetoQuadraticRel)       \
+  V(SVGPATHSEGCURVETOQUADRATICSMOOTHABS, SVGPathSegCurvetoQuadraticSmoothAbs)\
+  V(SVGPATHSEGCURVETOQUADRATICSMOOTHREL, SVGPathSegCurvetoQuadraticSmoothRel)\
+  V(SVGPATHSEGLINETOABS, SVGPathSegLinetoAbs)                           \
+  V(SVGPATHSEGLINETOHORIZONTALABS, SVGPathSegLinetoHorizontalAbs)       \
+  V(SVGPATHSEGLINETOHORIZONTALREL, SVGPathSegLinetoHorizontalRel)       \
+  V(SVGPATHSEGLINETOREL, SVGPathSegLinetoRel)                           \
+  V(SVGPATHSEGLINETOVERTICALABS, SVGPathSegLinetoVerticalAbs)           \
+  V(SVGPATHSEGLINETOVERTICALREL, SVGPathSegLinetoVerticalRel)           \
+  V(SVGPATHSEGLIST, SVGPathSegList)                                     \
+  V(SVGPATHSEGMOVETOABS, SVGPathSegMovetoAbs)                           \
+  V(SVGPATHSEGMOVETOREL, SVGPathSegMovetoRel)                           \
+  V(SVGPOINTLIST, SVGPointList)                                         \
+  V(SVGPRESERVEASPECTRATIO, SVGPreserveAspectRatio)                     \
+  V(SVGRENDERINGINTENT, SVGRenderingIntent)                             \
+  V(SVGSTRINGLIST, SVGStringList)                                       \
+  V(SVGTRANSFORMLIST, SVGTransformList)                                 \
+  V(SVGUNITTYPES, SVGUnitTypes)                                         \
+  V(SVGZOOMEVENT, SVGZoomEvent)
+
+// SVG POD types should list all types whose IDL has PODType declaration.
+#define SVG_POD_TYPES(V)                                                \
+  V(SVGLENGTH, SVGLength)                                               \
+  V(SVGTRANSFORM, SVGTransform)                                         \
+  V(SVGMATRIX, SVGMatrix)                                               \
+  V(SVGNUMBER, SVGNumber)                                               \
+  V(SVGPOINT, SVGPoint)                                                 \
+  V(SVGRECT, SVGRect)
+
+// POD types can have different implementation names, see CodeGenerateV8.pm.
+#define SVG_POD_NATIVE_TYPES(V)                                         \
+  V(SVGLENGTH, SVGLength)                                               \
+  V(SVGTRANSFORM, SVGTransform)                                         \
+  V(SVGMATRIX, TransformationMatrix)                                    \
+  V(SVGNUMBER, float)                                                   \
+  V(SVGPOINT, FloatPoint)                                               \
+  V(SVGRECT, FloatRect)
+
+// Shouldn't generate code for these two types.
+#define SVG_NO_WRAPPER_TYPES(V)                                         \
+  V(SVGURIREFERENCE, SVGURIReference)                                   \
+  V(SVGANIMATEDPOINTS, SVGAnimatedPoints)
+
+// SVG_NONNODE_TYPES are SVG non-node object types, pod typs and
+// numerical types.
+#define SVG_NONNODE_TYPES(V)                                            \
+  SVG_OBJECT_TYPES(V)                                                   \
+  SVG_POD_TYPES(V)
+#endif  // SVG
+
+// EVENTTARGET, EVENTLISTENER, and NPOBJECT do not have V8 wrappers.
+#define DOM_NO_WRAPPER_TYPES(V)                                         \
+  V(EVENTTARGET, EventTarget)                                           \
+  V(EVENTLISTENER, EventListener)                                       \
+  V(NPOBJECT, NPObject)
+
+#if ENABLE(SVG)
+#define WRAPPER_TYPES(V)                                \
+    DOM_NODE_TYPES(V)                                   \
+    DOM_OBJECT_TYPES(V)                                 \
+    SVG_NODE_TYPES(V)                                   \
+    SVG_NONNODE_TYPES(V)
+#define NO_WRAPPER_TYPES(V)                             \
+    DOM_NO_WRAPPER_TYPES(V)                             \
+    SVG_NO_WRAPPER_TYPES(V)
+#else  // SVG
+#define WRAPPER_TYPES(V)                                \
+    DOM_NODE_TYPES(V)                                   \
+    DOM_OBJECT_TYPES(V)
+#define NO_WRAPPER_TYPES(V)                             \
+    DOM_NO_WRAPPER_TYPES(V)
+#endif  // SVG
+
+#define ALL_WRAPPER_TYPES(V)                            \
+  WRAPPER_TYPES(V)                                      \
+  NO_WRAPPER_TYPES(V)
+
+class V8ClassIndex {
+ public:
+  // Type must start at non-negative numbers. See ToInt, FromInt.
+  enum V8WrapperType {
+    INVALID_CLASS_INDEX = 0,
+#define DEFINE_ENUM(name, type) name,
+    ALL_WRAPPER_TYPES(DEFINE_ENUM)
+#undef DEFINE_ENUM
+    CLASSINDEX_END,
+    WRAPPER_TYPE_COUNT = CLASSINDEX_END
+  };
+
+  static int ToInt(V8WrapperType type) { return static_cast<int>(type); }
+
+  static V8WrapperType FromInt(int v) {
+    ASSERT(INVALID_CLASS_INDEX <= v && v < CLASSINDEX_END);
+    return static_cast<V8WrapperType>(v);
+  }
+
+  static FunctionTemplateFactory GetFactory(V8WrapperType type);
+  // Returns a field to be used as cache for the template for the given type
+  static v8::Persistent<v8::FunctionTemplate>* GetCache(V8WrapperType type);
+};
+
+}
+
+#endif  // V8_INDEX_H__
diff --git a/V8Binding/binding/v8_npobject.h b/V8Binding/binding/v8_npobject.h
new file mode 100644
index 0000000..c2d8550
--- /dev/null
+++ b/V8Binding/binding/v8_npobject.h
@@ -0,0 +1,7 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This is a temporary file until V8HTMLPlugInElementCustom.cpp in WebKit
+// includes the new name of this file.
+#include "V8NPObject.h"
diff --git a/V8Binding/binding/v8_proxy.cpp b/V8Binding/binding/v8_proxy.cpp
new file mode 100644
index 0000000..45b56d7
--- /dev/null
+++ b/V8Binding/binding/v8_proxy.cpp
@@ -0,0 +1,3408 @@
+// Copyright (c) 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "config.h"
+
+#include <algorithm>
+#include <utility>
+
+#include <v8.h>
+
+#ifdef ENABLE_DEBUGGER_SUPPORT
+#include <v8-debug.h>
+#endif
+
+#include "v8_proxy.h"
+#include "v8_index.h"
+#include "v8_binding.h"
+#include "v8_custom.h"
+#include "V8Collection.h"
+#include "V8DOMWindow.h"
+
+#if PLATFORM(CHROMIUM)
+#include "ChromiumBridge.h"
+#endif
+
+#include "DOMObjectsInclude.h"
+
+#include "ScriptController.h"
+#include "V8DOMMap.h"
+
+#include "CString.h"
+
+namespace WebCore {
+
+V8EventListenerList::V8EventListenerList(const char* name)
+{
+  ASSERT(strlen(name) <= kMaxKeyNameLength);
+  v8::HandleScope handleScope;
+
+  // Write the name into a temporary buffer, leaving 1 space at the beginning
+  // for a prefix we'll vary between the inline and non-inline keys.
+  char keyBuffer[kMaxKeyNameLength + 2] = { 0 };
+  strncpy(keyBuffer + 1, name, kMaxKeyNameLength);
+  keyBuffer[0] = '1';
+  m_inlineKey = v8::Persistent<v8::String>::New(v8::String::New(keyBuffer));
+  keyBuffer[0] = '2';
+  m_nonInlineKey = v8::Persistent<v8::String>::New(v8::String::New(keyBuffer));
+}
+
+V8EventListenerList::~V8EventListenerList()
+{
+  m_inlineKey.Dispose();
+  m_nonInlineKey.Dispose();
+}
+
+V8EventListenerList::iterator V8EventListenerList::begin()
+{
+  return m_list.begin();
+}
+
+V8EventListenerList::iterator V8EventListenerList::end()
+{
+  return m_list.end();
+}
+
+v8::Handle<v8::String> V8EventListenerList::getKey(bool isInline)
+{
+  if (isInline)
+    return m_inlineKey;
+  else
+    return m_nonInlineKey;
+}
+
+// See comment in .h file for this function, and update accordingly if
+// implementation details change here.
+void V8EventListenerList::add(V8EventListener* listener)
+{
+  m_list.append(listener);
+
+  v8::HandleScope handleScope;
+  v8::Local<v8::Object> object = listener->getListenerObject();
+  v8::Local<v8::Value> value = v8::External::Wrap(listener);
+  object->SetHiddenValue(getKey(listener->isInline()), value);
+}
+
+void V8EventListenerList::remove(V8EventListener* listener)
+{
+  v8::HandleScope handleScope;
+  for (size_t i = 0; i < m_list.size(); i++) {
+    V8EventListener* element = m_list.at(i);
+    if (element->isInline() == listener->isInline() && element == listener) {
+      v8::Local<v8::Object> object = listener->getListenerObject();
+      object->DeleteHiddenValue(getKey(listener->isInline()));
+      m_list.remove(i);
+      break;
+    }
+  }
+}
+
+void V8EventListenerList::clear()
+{
+  v8::HandleScope handleScope;
+  for (size_t i = 0; i < m_list.size(); i++) {
+    V8EventListener* element = m_list.at(i);
+    v8::Local<v8::Object> object = element->getListenerObject();
+    object->DeleteHiddenValue(getKey(element->isInline()));
+  }
+  m_list.clear();
+}
+
+V8EventListener* V8EventListenerList::find(v8::Local<v8::Object> object, bool isInline)
+{
+  v8::Local<v8::Value> value = object->GetHiddenValue(getKey(isInline));
+  if (value.IsEmpty())
+    return 0;
+  return reinterpret_cast<V8EventListener*>(v8::External::Unwrap(value));
+}
+
+
+// Static utility context.
+v8::Persistent<v8::Context> V8Proxy::m_utilityContext;
+
+// Static list of registered extensions
+V8ExtensionList V8Proxy::m_extensions;
+
+
+#ifndef NDEBUG
+// Keeps track of global handles created (not JS wrappers
+// of DOM objects). Often these global handles are source
+// of leaks.
+//
+// If you want to let a C++ object hold a persistent handle
+// to a JS object, you should register the handle here to
+// keep track of leaks.
+//
+// When creating a persistent handle, call:
+//
+// #ifndef NDEBUG
+//    V8Proxy::RegisterGlobalHandle(type, host, handle);
+// #endif
+//
+// When releasing the handle, call:
+//
+// #ifndef NDEBUG
+//    V8Proxy::UnregisterGlobalHandle(type, host, handle);
+// #endif
+//
+typedef HashMap<v8::Value*, GlobalHandleInfo*> GlobalHandleMap;
+
+static GlobalHandleMap& global_handle_map()
+{
+    static GlobalHandleMap static_global_handle_map;
+    return static_global_handle_map;
+}
+
+
+// The USE_VAR(x) template is used to silence C++ compiler warnings
+// issued for unused variables (typically parameters or values that
+// we want to watch in the debugger).
+template <typename T>
+static inline void USE_VAR(T) { }
+
+// The function is the place to set the break point to inspect
+// live global handles. Leaks are often come from leaked global handles.
+static void EnumerateGlobalHandles()
+{
+  for (GlobalHandleMap::iterator it = global_handle_map().begin(),
+    end = global_handle_map().end(); it != end; ++it) {
+    GlobalHandleInfo* info = it->second;
+    USE_VAR(info);
+    v8::Value* handle = it->first;
+    USE_VAR(handle);
+  }
+}
+
+void V8Proxy::RegisterGlobalHandle(GlobalHandleType type, void* host,
+                                   v8::Persistent<v8::Value> handle)
+{
+  ASSERT(!global_handle_map().contains(*handle));
+  global_handle_map().set(*handle, new GlobalHandleInfo(host, type));
+}
+
+
+void V8Proxy::UnregisterGlobalHandle(void* host, v8::Persistent<v8::Value> handle)
+{
+    ASSERT(global_handle_map().contains(*handle));
+    GlobalHandleInfo* info = global_handle_map().take(*handle);
+    ASSERT(info->host_ == host);
+    delete info;
+}
+#endif  // ifndef NDEBUG
+
+void BatchConfigureAttributes(v8::Handle<v8::ObjectTemplate> inst,
+                              v8::Handle<v8::ObjectTemplate> proto,
+                              const BatchedAttribute* attrs,
+                              size_t num_attrs)
+{
+  for (size_t i = 0; i < num_attrs; ++i) {
+    const BatchedAttribute* a = &attrs[i];
+    (a->on_proto ? proto : inst)->SetAccessor(
+        v8::String::New(a->name),
+        a->getter,
+        a->setter,
+        a->data == V8ClassIndex::INVALID_CLASS_INDEX
+            ? v8::Handle<v8::Value>()
+            : v8::Integer::New(V8ClassIndex::ToInt(a->data)),
+        a->settings,
+        a->attribute);
+  }
+}
+
+void BatchConfigureConstants(v8::Handle<v8::FunctionTemplate> desc,
+                             v8::Handle<v8::ObjectTemplate> proto,
+                             const BatchedConstant* consts,
+                             size_t num_consts)
+{
+  for (size_t i = 0; i < num_consts; ++i) {
+    const BatchedConstant* c = &consts[i];
+    desc->Set(v8::String::New(c->name),
+              v8::Integer::New(c->value),
+              v8::ReadOnly);
+    proto->Set(v8::String::New(c->name),
+               v8::Integer::New(c->value),
+               v8::ReadOnly);
+  }
+}
+
+typedef HashMap<Node*, v8::Object*> DOMNodeMap;
+typedef HashMap<void*, v8::Object*> DOMObjectMap;
+
+#ifndef NDEBUG
+static void EnumerateDOMObjectMap(DOMObjectMap& wrapper_map)
+{
+  for (DOMObjectMap::iterator it = wrapper_map.begin(), end = wrapper_map.end();
+       it != end; ++it) {
+    v8::Persistent<v8::Object> wrapper(it->second);
+    V8ClassIndex::V8WrapperType type = V8Proxy::GetDOMWrapperType(wrapper);
+    void* obj = it->first;
+    USE_VAR(type);
+    USE_VAR(obj);
+  }
+}
+
+
+static void EnumerateDOMNodeMap(DOMNodeMap& node_map)
+{
+  for (DOMNodeMap::iterator it = node_map.begin(), end = node_map.end();
+    it != end; ++it) {
+    Node* node = it->first;
+    USE_VAR(node);
+    ASSERT(v8::Persistent<v8::Object>(it->second).IsWeak());
+  }
+}
+#endif  // NDEBUG
+
+#if ENABLE(SVG)
+v8::Handle<v8::Value> V8Proxy::SVGElementInstanceToV8Object(
+    SVGElementInstance* instance)
+{
+  if (!instance)
+    return v8::Null();
+
+  v8::Handle<v8::Object> existing_instance = getDOMSVGElementInstanceMap().get(instance);
+  if (!existing_instance.IsEmpty())
+    return existing_instance;
+
+  instance->ref();
+
+  // Instantiate the V8 object and remember it
+  v8::Handle<v8::Object> result =
+      InstantiateV8Object(V8ClassIndex::SVGELEMENTINSTANCE,
+                          V8ClassIndex::SVGELEMENTINSTANCE,
+                          instance);
+  if (!result.IsEmpty()) {
+    // Only update the DOM SVG element map if the result is non-empty.
+    getDOMSVGElementInstanceMap().set(instance,
+      v8::Persistent<v8::Object>::New(result));
+  }
+  return result;
+}
+
+// Map of SVG objects with contexts to their contexts
+static HashMap<void*, SVGElement*>& svg_object_to_context_map()
+{
+    static HashMap<void*, SVGElement*> static_svg_object_to_context_map;
+    return static_svg_object_to_context_map;
+}
+
+v8::Handle<v8::Value> V8Proxy::SVGObjectWithContextToV8Object(
+    V8ClassIndex::V8WrapperType type, void* object)
+{
+  if (!object)
+    return v8::Null();
+
+  v8::Persistent<v8::Object> result =
+    getDOMSVGObjectWithContextMap().get(object);
+  if (!result.IsEmpty()) return result;
+
+  // Special case: SVGPathSegs need to be downcast to their real type
+  if (type == V8ClassIndex::SVGPATHSEG)
+    type = V8Custom::DowncastSVGPathSeg(object);
+
+  v8::Local<v8::Object> v8obj = InstantiateV8Object(type, type, object);
+  if (!v8obj.IsEmpty()) {
+    result = v8::Persistent<v8::Object>::New(v8obj);
+    switch (type) {
+#define MAKE_CASE(TYPE, NAME)     \
+      case V8ClassIndex::TYPE: static_cast<NAME*>(object)->ref(); break;
+SVG_OBJECT_TYPES(MAKE_CASE)
+#undef MAKE_CASE
+#define MAKE_CASE(TYPE, NAME)     \
+      case V8ClassIndex::TYPE:    \
+        static_cast<V8SVGPODTypeWrapper<NAME>*>(object)->ref(); break;
+SVG_POD_NATIVE_TYPES(MAKE_CASE)
+#undef MAKE_CASE
+      default:
+        ASSERT(false);
+    }
+    getDOMSVGObjectWithContextMap().set(object, result);
+  }
+
+  return result;
+}
+
+void V8Proxy::SetSVGContext(void* obj, SVGElement* context)
+{
+  SVGElement* old_context = svg_object_to_context_map().get(obj);
+
+  if (old_context == context)
+    return;
+
+  if (old_context)
+    old_context->deref();
+
+  if (context)
+    context->ref();
+
+  svg_object_to_context_map().set(obj, context);
+}
+
+SVGElement* V8Proxy::GetSVGContext(void* obj)
+{
+    return svg_object_to_context_map().get(obj);
+}
+
+#endif
+
+// A map from a DOM node to its JS wrapper, the wrapper
+// is kept as a strong reference to survive GCs.
+static DOMObjectMap& gc_protected_map() {
+    static DOMObjectMap static_gc_protected_map;
+    return static_gc_protected_map;
+}
+
+// static
+void V8Proxy::GCProtect(void* dom_object)
+{
+  if (!dom_object)
+      return;
+  if (gc_protected_map().contains(dom_object))
+      return;
+  if (!getDOMObjectMap().contains(dom_object))
+      return;
+
+  // Create a new (strong) persistent handle for the object.
+  v8::Persistent<v8::Object> wrapper = getDOMObjectMap().get(dom_object);
+  if (wrapper.IsEmpty()) return;
+
+  gc_protected_map().set(dom_object, *v8::Persistent<v8::Object>::New(wrapper));
+}
+
+
+// static
+void V8Proxy::GCUnprotect(void* dom_object)
+{
+  if (!dom_object)
+      return;
+  if (!gc_protected_map().contains(dom_object))
+      return;
+
+  // Dispose the strong reference.
+  v8::Persistent<v8::Object> wrapper(gc_protected_map().take(dom_object));
+  wrapper.Dispose();
+}
+
+
+typedef std::pair<uintptr_t, Node*> GrouperPair;
+typedef Vector<GrouperPair> GrouperList;
+
+#if PLATFORM(ANDROID)
+// Sort GrouperPair by the group id. Node* is only involved to sort within
+// a group id, so it will be fine.
+static bool ComparePair(const GrouperPair& p1, const GrouperPair& p2) {
+  return p1.first < p2.first;
+}
+#endif
+
+// Create object groups for DOM tree nodes.
+static void GCPrologue()
+{
+  v8::HandleScope scope;
+
+#ifndef NDEBUG
+  EnumerateDOMObjectMap(getDOMObjectMap().impl());
+#endif
+
+  // Run through all objects with possible pending activity making their
+  // wrappers non weak if there is pending activity.
+  DOMObjectMap active_map = getActiveDOMObjectMap().impl();
+  for (DOMObjectMap::iterator it = active_map.begin(), end = active_map.end();
+    it != end; ++it) {
+    void* obj = it->first;
+    v8::Persistent<v8::Object> wrapper = v8::Persistent<v8::Object>(it->second);
+    ASSERT(wrapper.IsWeak());
+    V8ClassIndex::V8WrapperType type = V8Proxy::GetDOMWrapperType(wrapper);
+    switch (type) {
+#define MAKE_CASE(TYPE, NAME)                   \
+      case V8ClassIndex::TYPE: {                \
+        NAME* impl = static_cast<NAME*>(obj);   \
+        if (impl->hasPendingActivity())         \
+          wrapper.ClearWeak();                  \
+        break;                                  \
+      }
+ACTIVE_DOM_OBJECT_TYPES(MAKE_CASE)
+      default:
+        ASSERT(false);
+#undef MAKE_CASE
+    }
+
+    // Additional handling of message port ensuring that entangled ports also
+    // have their wrappers entangled. This should ideally be handled when the
+    // ports are actually entangled in MessagePort::entangle, but to avoid
+    // forking MessagePort.* this is postponed to GC time. Having this postponed
+    // has the drawback that the wrappers are "entangled/unentangled" for each
+    // GC even though their entnaglement most likely is still the same.
+    if (type == V8ClassIndex::MESSAGEPORT) {
+      // Get the port and its entangled port.
+      MessagePort* port1 = static_cast<MessagePort*>(obj);
+      MessagePort* port2 = port1->entangledPort();
+      if (port2 != NULL) {
+        // As ports are always entangled in pairs only perform the entanglement
+        // once for each pair (see ASSERT in MessagePort::unentangle()).
+        if (port1 < port2) {
+          v8::Handle<v8::Value> port1_wrapper =
+              V8Proxy::ToV8Object(V8ClassIndex::MESSAGEPORT, port1);
+          v8::Handle<v8::Value> port2_wrapper =
+              V8Proxy::ToV8Object(V8ClassIndex::MESSAGEPORT, port2);
+          ASSERT(port1_wrapper->IsObject());
+          v8::Handle<v8::Object>::Cast(port1_wrapper)->SetInternalField(
+              V8Custom::kMessagePortEntangledPortIndex, port2_wrapper);
+          ASSERT(port2_wrapper->IsObject());
+          v8::Handle<v8::Object>::Cast(port2_wrapper)->SetInternalField(
+              V8Custom::kMessagePortEntangledPortIndex, port1_wrapper);
+        }
+      } else {
+        // Remove the wrapper entanglement when a port is not entangled.
+        if (V8Proxy::DOMObjectHasJSWrapper(port1)) {
+          v8::Handle<v8::Value> wrapper =
+            V8Proxy::ToV8Object(V8ClassIndex::MESSAGEPORT, port1);
+          ASSERT(wrapper->IsObject());
+          v8::Handle<v8::Object>::Cast(wrapper)->SetInternalField(
+            V8Custom::kMessagePortEntangledPortIndex, v8::Undefined());
+        }
+      }
+    }
+  }
+
+  // Create object groups.
+  DOMNodeMap node_map = getDOMNodeMap().impl();
+  GrouperList grouper;
+  grouper.reserveCapacity(node_map.size());
+
+  for (DOMNodeMap::iterator it = node_map.begin(), end = node_map.end();
+    it != end; ++it) {
+    Node* node = it->first;
+
+    // If the node is in document, put it in the ownerDocument's object group.
+    //
+    // If an image element was created by JavaScript "new Image",
+    // it is not in a document. However, if the load event has not
+    // been fired (still onloading), it is treated as in the document.
+    //
+    // Otherwise, the node is put in an object group identified by the root
+    // elment of the tree to which it belongs.
+    uintptr_t group_id;
+    if (node->inDocument() ||
+        (node->hasTagName(HTMLNames::imgTag) &&
+         !static_cast<HTMLImageElement*>(node)->haveFiredLoadEvent())) {
+      group_id = reinterpret_cast<uintptr_t>(node->document());
+    } else {
+      Node* root = node;
+      while (root->parent())
+        root = root->parent();
+
+      // If the node is alone in its DOM tree (doesn't have a parent or any
+      // children) then the group will be filtered out later anyway.
+      if (root == node && !node->hasChildNodes())
+        continue;
+
+      group_id = reinterpret_cast<uintptr_t>(root);
+    }
+    grouper.append(GrouperPair(group_id, node));
+  }
+
+#if PLATFORM(ANDROID)
+  std::stable_sort<GrouperPair>(grouper.begin(), grouper.end(), ComparePair); 
+#else
+  // Group by sorting by the group id.  This will use the std::pair operator<,
+  // which will really sort by both the group id and the Node*.  However the
+  // Node* is only involved to sort within a group id, so it will be fine.
+  std::sort(grouper.begin(), grouper.end());
+#endif
+
+  // TODO(deanm): Should probably work in iterators here, but indexes were
+  // easier for my simple mind.
+  for (size_t i = 0; i < grouper.size(); ) {
+    // Seek to the next key (or the end of the list).
+    size_t next_key_index = grouper.size();
+    for (size_t j = i; j < grouper.size(); ++j) {
+      if (grouper[i].first != grouper[j].first) {
+        next_key_index = j;
+        break;
+      }
+    }
+
+    ASSERT(next_key_index > i);
+
+    // We only care about a group if it has more than one object.  If it only
+    // has one object, it has nothing else that needs to be kept alive.
+    if (next_key_index - i <= 1) {
+      i = next_key_index;
+      continue;
+    }
+
+    Vector<v8::Persistent<v8::Value> > group;
+    group.reserveCapacity(next_key_index - i);
+    for (; i < next_key_index; ++i) {
+      v8::Persistent<v8::Value> wrapper =
+          getDOMNodeMap().get(grouper[i].second);
+      if (!wrapper.IsEmpty())
+        group.append(wrapper);
+    }
+
+    if (group.size() > 1)
+      v8::V8::AddObjectGroup(&group[0], group.size());
+
+    ASSERT(i == next_key_index);
+  }
+}
+
+
+static void GCEpilogue()
+{
+  v8::HandleScope scope;
+
+  // Run through all objects with pending activity making their wrappers weak
+  // again.
+  DOMObjectMap active_map = getActiveDOMObjectMap().impl();
+  for (DOMObjectMap::iterator it = active_map.begin(), end = active_map.end();
+    it != end; ++it) {
+    void* obj = it->first;
+    v8::Persistent<v8::Object> wrapper = v8::Persistent<v8::Object>(it->second);
+    V8ClassIndex::V8WrapperType type = V8Proxy::GetDOMWrapperType(wrapper);
+    switch (type) {
+#define MAKE_CASE(TYPE, NAME)                                     \
+      case V8ClassIndex::TYPE: {                                  \
+        NAME* impl = static_cast<NAME*>(obj);                     \
+        if (impl->hasPendingActivity()) {                         \
+          ASSERT(!wrapper.IsWeak());                              \
+          wrapper.MakeWeak(impl, &weakActiveDOMObjectCallback);   \
+        }                                                         \
+        break;                                                    \
+      }
+ACTIVE_DOM_OBJECT_TYPES(MAKE_CASE)
+      default:
+        ASSERT(false);
+#undef MAKE_CASE
+    }
+  }
+
+#ifndef NDEBUG
+  // Check all survivals are weak.
+  EnumerateDOMObjectMap(getDOMObjectMap().impl());
+  EnumerateDOMNodeMap(getDOMNodeMap().impl());
+  EnumerateDOMObjectMap(gc_protected_map());
+  EnumerateGlobalHandles();
+#undef USE_VAR
+#endif
+}
+
+
+typedef HashMap<int, v8::FunctionTemplate*> FunctionTemplateMap;
+
+bool AllowAllocation::m_current = false;
+
+
+// JavaScriptConsoleMessages encapsulate everything needed to
+// log messages originating from JavaScript to the Chrome console.
+class JavaScriptConsoleMessage {
+ public:
+  JavaScriptConsoleMessage(const String& str,
+                           const String& sourceID,
+                           unsigned lineNumber)
+    : m_string(str)
+    , m_sourceID(sourceID)
+    , m_lineNumber(lineNumber) { }
+
+  void AddToPage(Page* page) const;
+
+ private:
+  const String m_string;
+  const String m_sourceID;
+  const unsigned m_lineNumber;
+};
+
+void JavaScriptConsoleMessage::AddToPage(Page* page) const
+{
+    ASSERT(page);
+    Console* console = page->mainFrame()->domWindow()->console();
+    console->addMessage(JSMessageSource, ErrorMessageLevel, m_string, m_lineNumber, m_sourceID);
+}
+
+// The ConsoleMessageManager handles all console messages that stem
+// from JavaScript. It keeps a list of messages that have been delayed but
+// it makes sure to add all messages to the console in the right order.
+class ConsoleMessageManager {
+ public:
+  // Add a message to the console. May end up calling JavaScript code
+  // indirectly through the inspector so only call this function when
+  // it is safe to do allocations.
+  static void AddMessage(Page* page, const JavaScriptConsoleMessage& message);
+
+  // Add a message to the console but delay the reporting until it
+  // is safe to do so: Either when we leave JavaScript execution or
+  // when adding other console messages. The primary purpose of this
+  // method is to avoid calling into V8 to handle console messages
+  // when the VM is in a state that does not support GCs or allocations.
+  // Delayed messages are always reported in the page corresponding
+  // to the active context.
+  static void AddDelayedMessage(const JavaScriptConsoleMessage& message);
+
+  // Process any delayed messages. May end up calling JavaScript code
+  // indirectly through the inspector so only call this function when
+  // it is safe to do allocations.
+  static void ProcessDelayedMessages();
+
+ private:
+  // All delayed messages are stored in this vector. If the vector
+  // is NULL, there are no delayed messages.
+  static Vector<JavaScriptConsoleMessage>* m_delayed;
+};
+
+
+Vector<JavaScriptConsoleMessage>* ConsoleMessageManager::m_delayed = NULL;
+
+
+void ConsoleMessageManager::AddMessage(
+    Page* page,
+    const JavaScriptConsoleMessage& message)
+{
+  // Process any delayed messages to make sure that messages
+  // appear in the right order in the console.
+  ProcessDelayedMessages();
+  message.AddToPage(page);
+}
+
+
+void ConsoleMessageManager::AddDelayedMessage(const JavaScriptConsoleMessage& message)
+{
+    if (!m_delayed)
+        // Allocate a vector for the delayed messages. Will be
+        // deallocated when the delayed messages are processed
+        // in ProcessDelayedMessages().
+        m_delayed = new Vector<JavaScriptConsoleMessage>();
+    m_delayed->append(message);
+}
+
+
+void ConsoleMessageManager::ProcessDelayedMessages()
+{
+    // If we have a delayed vector it cannot be empty.
+    if (!m_delayed)
+        return;
+    ASSERT(!m_delayed->isEmpty());
+
+    // Add the delayed messages to the page of the active
+    // context. If that for some bizarre reason does not
+    // exist, we clear the list of delayed messages to avoid
+    // posting messages. We still deallocate the vector.
+    Frame* frame = V8Proxy::retrieveActiveFrame();
+    Page* page = NULL;
+    if (frame)
+        page = frame->page();
+    if (!page)
+        m_delayed->clear();
+
+    // Iterate through all the delayed messages and add them
+    // to the console.
+    const int size = m_delayed->size();
+    for (int i = 0; i < size; i++) {
+        m_delayed->at(i).AddToPage(page);
+    }
+
+    // Deallocate the delayed vector.
+    delete m_delayed;
+    m_delayed = NULL;
+}
+
+
+// Convenience class for ensuring that delayed messages in the
+// ConsoleMessageManager are processed quickly.
+class ConsoleMessageScope {
+ public:
+  ConsoleMessageScope() { ConsoleMessageManager::ProcessDelayedMessages(); }
+  ~ConsoleMessageScope() { ConsoleMessageManager::ProcessDelayedMessages(); }
+};
+
+void log_info(Frame* frame, const String& msg, const String& url)
+{
+    Page* page = frame->page();
+    if (!page)
+        return;
+    JavaScriptConsoleMessage message(msg, url, 0);
+    ConsoleMessageManager::AddMessage(page, message);
+}
+
+static void HandleConsoleMessage(v8::Handle<v8::Message> message,
+                                 v8::Handle<v8::Value> data)
+{
+  // Use the frame where JavaScript is called from.
+  Frame* frame = V8Proxy::retrieveActiveFrame();
+  if (!frame)
+      return;
+
+  Page* page = frame->page();
+  if (!page)
+      return;
+
+  v8::Handle<v8::String> errorMessageString = message->Get();
+  ASSERT(!errorMessageString.IsEmpty());
+  String errorMessage = ToWebCoreString(errorMessageString);
+
+  v8::Handle<v8::Value> resourceName = message->GetScriptResourceName();
+  bool useURL = (resourceName.IsEmpty() || !resourceName->IsString());
+  String resourceNameString = (useURL)
+      ? frame->document()->url()
+      : ToWebCoreString(resourceName);
+  JavaScriptConsoleMessage consoleMessage(errorMessage,
+                                          resourceNameString,
+                                          message->GetLineNumber());
+  ConsoleMessageManager::AddMessage(page, consoleMessage);
+}
+
+
+enum DelayReporting {
+  REPORT_LATER,
+  REPORT_NOW
+};
+
+
+static void ReportUnsafeAccessTo(Frame* target, DelayReporting delay)
+{
+  ASSERT(target);
+  Document* targetDocument = target->document();
+  if (!targetDocument)
+      return;
+
+  Frame* source = V8Proxy::retrieveActiveFrame();
+  if (!source || !source->document())
+      return;  // Ignore error if the source document is gone.
+
+  Document* sourceDocument = source->document();
+
+  // FIXME: This error message should contain more specifics of why the same
+  // origin check has failed.
+  String str = String::format("Unsafe JavaScript attempt to access frame "
+      "with URL %s from frame with URL %s. "
+      "Domains, protocols and ports must match.\n",
+      targetDocument->url().string().utf8().data(),
+      sourceDocument->url().string().utf8().data());
+
+  // Build a console message with fake source ID and line number.
+  const String kSourceID = "";
+  const int kLineNumber = 1;
+  JavaScriptConsoleMessage message(str, kSourceID, kLineNumber);
+
+  if (delay == REPORT_NOW) {
+    // NOTE(tc): Apple prints the message in the target page, but it seems like
+    // it should be in the source page. Even for delayed messages, we put it in
+    // the source page; see ConsoleMessageManager::ProcessDelayedMessages().
+    ConsoleMessageManager::AddMessage(source->page(), message);
+
+  } else {
+    ASSERT(delay == REPORT_LATER);
+    // We cannot safely report the message eagerly, because this may cause
+    // allocations and GCs internally in V8 and we cannot handle that at this
+    // point. Therefore we delay the reporting.
+    ConsoleMessageManager::AddDelayedMessage(message);
+  }
+}
+
+static void ReportUnsafeJavaScriptAccess(v8::Local<v8::Object> host,
+                                         v8::AccessType type,
+                                         v8::Local<v8::Value> data)
+{
+    Frame* target = V8Custom::GetTargetFrame(host, data);
+    if (target)
+        ReportUnsafeAccessTo(target, REPORT_LATER);
+}
+
+static void HandleFatalErrorInV8()
+{
+    // TODO: We temporarily deal with V8 internal error situations
+    // such as out-of-memory by crashing the renderer.
+    CRASH();
+}
+
+static void ReportFatalErrorInV8(const char* location, const char* message)
+{
+    // V8 is shutdown, we cannot use V8 api.
+    // The only thing we can do is to disable JavaScript.
+    // TODO: clean up V8Proxy and disable JavaScript.
+    printf("V8 error: %s (%s)\n", message, location);
+    HandleFatalErrorInV8();
+}
+
+V8Proxy::~V8Proxy()
+{
+    clearForClose();
+    DestroyGlobal();
+}
+
+void V8Proxy::DestroyGlobal()
+{
+    if (!m_global.IsEmpty()) {
+#ifndef NDEBUG
+        UnregisterGlobalHandle(this, m_global);
+#endif
+        m_global.Dispose();
+        m_global.Clear();
+    }
+}
+
+
+bool V8Proxy::DOMObjectHasJSWrapper(void* obj) {
+  return getDOMObjectMap().contains(obj) ||
+      getActiveDOMObjectMap().contains(obj);
+}
+
+
+// The caller must have increased obj's ref count.
+void V8Proxy::SetJSWrapperForDOMObject(void* obj, v8::Persistent<v8::Object> wrapper)
+{
+    ASSERT(MaybeDOMWrapper(wrapper));
+#ifndef NDEBUG
+    V8ClassIndex::V8WrapperType type = V8Proxy::GetDOMWrapperType(wrapper);
+    switch (type) {
+#define MAKE_CASE(TYPE, NAME) case V8ClassIndex::TYPE:
+ACTIVE_DOM_OBJECT_TYPES(MAKE_CASE)
+      ASSERT(false);
+#undef MAKE_CASE
+      default: break;
+    }
+#endif
+    getDOMObjectMap().set(obj, wrapper);
+}
+
+// The caller must have increased obj's ref count.
+void V8Proxy::SetJSWrapperForActiveDOMObject(void* obj, v8::Persistent<v8::Object> wrapper)
+{
+    ASSERT(MaybeDOMWrapper(wrapper));
+#ifndef NDEBUG
+    V8ClassIndex::V8WrapperType type = V8Proxy::GetDOMWrapperType(wrapper);
+    switch (type) {
+#define MAKE_CASE(TYPE, NAME) case V8ClassIndex::TYPE: break;
+ACTIVE_DOM_OBJECT_TYPES(MAKE_CASE)
+      default: ASSERT(false);
+#undef MAKE_CASE
+    }
+#endif
+    getActiveDOMObjectMap().set(obj, wrapper);
+}
+
+// The caller must have increased node's ref count.
+void V8Proxy::SetJSWrapperForDOMNode(Node* node, v8::Persistent<v8::Object> wrapper)
+{
+    ASSERT(MaybeDOMWrapper(wrapper));
+    getDOMNodeMap().set(node, wrapper);
+}
+
+PassRefPtr<EventListener> V8Proxy::createInlineEventListener(
+                                               const String& functionName,
+                                               const String& code, Node* node)
+{
+    return V8LazyEventListener::create(m_frame, code, functionName);
+}
+
+#if ENABLE(SVG)
+PassRefPtr<EventListener> V8Proxy::createSVGEventHandler(const String& functionName,
+                                              const String& code, Node* node)
+{
+    return V8LazyEventListener::create(m_frame, code, functionName);
+}
+#endif
+
+
+// Event listeners
+
+static V8EventListener* FindEventListenerInList(V8EventListenerList& list,
+                                                v8::Local<v8::Value> listener,
+                                                bool isInline)
+{
+  ASSERT(v8::Context::InContext());
+
+  if (!listener->IsObject())
+      return 0;
+
+  return list.find(listener->ToObject(), isInline);
+}
+
+// Find an existing wrapper for a JS event listener in the map.
+PassRefPtr<V8EventListener> V8Proxy::FindV8EventListener(v8::Local<v8::Value> listener,
+                                              bool isInline)
+{
+    return FindEventListenerInList(m_event_listeners, listener, isInline);
+}
+
+PassRefPtr<V8EventListener> V8Proxy::FindOrCreateV8EventListener(v8::Local<v8::Value> obj, bool isInline)
+{
+  ASSERT(v8::Context::InContext());
+
+  if (!obj->IsObject())
+      return 0;
+
+  V8EventListener* wrapper =
+      FindEventListenerInList(m_event_listeners, obj, isInline);
+  if (wrapper)
+      return wrapper;
+
+  // Create a new one, and add to cache.
+  RefPtr<V8EventListener> new_listener =
+    V8EventListener::create(m_frame, v8::Local<v8::Object>::Cast(obj), isInline);
+  m_event_listeners.add(new_listener.get());
+
+  return new_listener;
+}
+
+
+// Object event listeners (such as XmlHttpRequest and MessagePort) are
+// different from listeners on DOM nodes. An object event listener wrapper
+// only holds a weak reference to the JS function. A strong reference can
+// create a cycle.
+//
+// The lifetime of these objects is bounded by the life time of its JS
+// wrapper. So we can create a hidden reference from the JS wrapper to
+// to its JS function.
+//
+//                          (map)
+//              XHR      <----------  JS_wrapper
+//               |             (hidden) :  ^
+//               V                      V  : (may reachable by closure)
+//           V8_listener  --------> JS_function
+//                         (weak)  <-- may create a cycle if it is strong
+//
+// The persistent reference is made weak in the constructor
+// of V8ObjectEventListener.
+
+PassRefPtr<V8EventListener> V8Proxy::FindObjectEventListener(
+    v8::Local<v8::Value> listener, bool isInline)
+{
+  return FindEventListenerInList(m_xhr_listeners, listener, isInline);
+}
+
+
+PassRefPtr<V8EventListener> V8Proxy::FindOrCreateObjectEventListener(
+    v8::Local<v8::Value> obj, bool isInline)
+{
+  ASSERT(v8::Context::InContext());
+
+  if (!obj->IsObject())
+    return 0;
+
+  V8EventListener* wrapper =
+      FindEventListenerInList(m_xhr_listeners, obj, isInline);
+  if (wrapper)
+    return wrapper;
+
+  // Create a new one, and add to cache.
+  RefPtr<V8EventListener> new_listener =
+    V8ObjectEventListener::create(m_frame, v8::Local<v8::Object>::Cast(obj), isInline);
+  m_xhr_listeners.add(new_listener.get());
+
+  return new_listener.release();
+}
+
+
+static void RemoveEventListenerFromList(V8EventListenerList& list,
+                                        V8EventListener* listener)
+{
+  list.remove(listener);
+}
+
+
+void V8Proxy::RemoveV8EventListener(V8EventListener* listener)
+{
+  RemoveEventListenerFromList(m_event_listeners, listener);
+}
+
+
+void V8Proxy::RemoveObjectEventListener(V8ObjectEventListener* listener)
+{
+  RemoveEventListenerFromList(m_xhr_listeners, listener);
+}
+
+
+static void DisconnectEventListenersInList(V8EventListenerList& list)
+{
+  V8EventListenerList::iterator p = list.begin();
+  while (p != list.end()) {
+    (*p)->disconnectFrame();
+    ++p;
+  }
+  list.clear();
+}
+
+
+void V8Proxy::DisconnectEventListeners()
+{
+  DisconnectEventListenersInList(m_event_listeners);
+  DisconnectEventListenersInList(m_xhr_listeners);
+}
+
+
+v8::Handle<v8::Script> V8Proxy::CompileScript(v8::Handle<v8::String> code,
+                                              const String& fileName,
+                                              int baseLine)
+{
+    const uint16_t* fileNameString = FromWebCoreString(fileName);
+    v8::Handle<v8::String> name =
+      v8::String::New(fileNameString, fileName.length());
+    v8::Handle<v8::Integer> line = v8::Integer::New(baseLine);
+    v8::ScriptOrigin origin(name, line);
+    v8::Handle<v8::Script> script = v8::Script::Compile(code, &origin);
+    return script;
+}
+
+bool V8Proxy::HandleOutOfMemory()
+{
+    v8::Local<v8::Context> context = v8::Context::GetCurrent();
+
+    if (!context->HasOutOfMemoryException())
+        return false;
+
+    // Warning, error, disable JS for this frame?
+    Frame* frame = V8Proxy::retrieveFrame(context);
+
+    V8Proxy* proxy = V8Proxy::retrieve(frame);
+    // Clean m_context, and event handlers.
+    proxy->clearForClose();
+    // Destroy the global object.
+    proxy->DestroyGlobal();
+
+#if PLATFORM(CHROMIUM)
+    ChromiumBridge::notifyJSOutOfMemory(frame);
+#endif
+    // Disable JS.
+    Settings* settings = frame->settings();
+    ASSERT(settings);
+    settings->setJavaScriptEnabled(false);
+
+    return true;
+}
+
+void V8Proxy::evaluateInNewContext(const Vector<ScriptSourceCode>& sources)
+{
+    InitContextIfNeeded();
+
+    v8::HandleScope handleScope;
+
+    // Set up the DOM window as the prototype of the new global object.
+    v8::Handle<v8::Context> windowContext = m_context;
+    v8::Handle<v8::Object> windowGlobal = windowContext->Global();
+    v8::Handle<v8::Value> windowWrapper =
+        V8Proxy::LookupDOMWrapper(V8ClassIndex::DOMWINDOW, windowGlobal);
+
+    ASSERT(V8Proxy::DOMWrapperToNative<DOMWindow>(windowWrapper) ==
+           m_frame->domWindow());
+
+    v8::Persistent<v8::Context> context =
+        createNewContext(v8::Handle<v8::Object>());
+    v8::Context::Scope context_scope(context);
+    v8::Handle<v8::Object> global = context->Global();
+
+    v8::Handle<v8::String> implicitProtoString = v8::String::New("__proto__");
+    global->Set(implicitProtoString, windowWrapper);
+
+    // Give the code running in the new context a way to get access to the
+    // original context.
+    global->Set(v8::String::New("contentWindow"), windowGlobal);
+
+    // Run code in the new context.
+    for (size_t i = 0; i < sources.size(); ++i)
+        evaluate(sources[i], 0);
+
+    // Using the default security token means that the canAccess is always
+    // called, which is slow.
+    // TODO(aa): Use tokens where possible. This will mean keeping track of all
+    // created contexts so that they can all be updated when the document domain
+    // changes.
+    context->UseDefaultSecurityToken();
+    context.Dispose();
+}
+
+v8::Local<v8::Value> V8Proxy::evaluate(const ScriptSourceCode& source, Node* n)
+{
+    ASSERT(v8::Context::InContext());
+
+    // Compile the script.
+    v8::Local<v8::String> code = v8ExternalString(source.source());
+#if PLATFORM(CHROMIUM)
+    ChromiumBridge::traceEventBegin("v8.compile", n, "");
+#endif
+
+    // NOTE: For compatibility with WebCore, ScriptSourceCode's line starts at
+    // 1, whereas v8 starts at 0.
+    v8::Handle<v8::Script> script = CompileScript(code, source.url(),
+                                                  source.startLine() - 1);
+#if PLATFORM(CHROMIUM)
+    ChromiumBridge::traceEventEnd("v8.compile", n, "");
+    ChromiumBridge::traceEventBegin("v8.run", n, "");
+#endif
+
+    v8::Local<v8::Value> result;
+    {
+      // Isolate exceptions that occur when executing the code.  These
+      // exceptions should not interfere with javascript code we might
+      // evaluate from C++ when returning from here
+      v8::TryCatch try_catch;
+      try_catch.SetVerbose(true);
+
+      // Set inlineCode to true for <a href="javascript:doSomething()">
+      // and false for <script>doSomething</script>. We make a rough guess at
+      // this based on whether the script source has a URL.
+      result = RunScript(script, source.url().string().isNull());
+    }
+#if PLATFORM(CHROMIUM)
+    ChromiumBridge::traceEventEnd("v8.run", n, "");
+#endif
+    return result;
+}
+
+v8::Local<v8::Value> V8Proxy::RunScript(v8::Handle<v8::Script> script,
+                                        bool inline_code)
+{
+  if (script.IsEmpty())
+    return v8::Local<v8::Value>();
+
+  // Compute the source string and prevent against infinite recursion.
+  if (m_recursion >= kMaxRecursionDepth) {
+    v8::Local<v8::String> code =
+        v8ExternalString("throw RangeError('Recursion too deep')");
+    // TODO(kasperl): Ideally, we should be able to re-use the origin of the
+    // script passed to us as the argument instead of using an empty string
+    // and 0 baseLine.
+    script = CompileScript(code, "", 0);
+  }
+
+  if (HandleOutOfMemory())
+    ASSERT(script.IsEmpty());
+
+  if (script.IsEmpty())
+    return v8::Local<v8::Value>();
+
+  // Save the previous value of the inlineCode flag and update the flag for
+  // the duration of the script invocation.
+  bool previous_inline_code = inlineCode();
+  setInlineCode(inline_code);
+
+  // Run the script and keep track of the current recursion depth.
+  v8::Local<v8::Value> result;
+  { ConsoleMessageScope scope;
+    m_recursion++;
+
+    // Evaluating the JavaScript could cause the frame to be deallocated,
+    // so we start the keep alive timer here.
+    // Frame::keepAlive method adds the ref count of the frame and sets a
+    // timer to decrease the ref count. It assumes that the current JavaScript
+    // execution finishs before firing the timer.
+    // See issue 1218756 and 914430.
+    m_frame->keepAlive();
+
+    result = script->Run();
+    m_recursion--;
+  }
+
+  if (HandleOutOfMemory())
+    ASSERT(result.IsEmpty());
+
+  // Handle V8 internal error situation (Out-of-memory).
+  if (result.IsEmpty())
+    return v8::Local<v8::Value>();
+
+  // Restore inlineCode flag.
+  setInlineCode(previous_inline_code);
+
+  if (v8::V8::IsDead())
+    HandleFatalErrorInV8();
+
+  return result;
+}
+
+
+v8::Local<v8::Value> V8Proxy::CallFunction(v8::Handle<v8::Function> function,
+                                           v8::Handle<v8::Object> receiver,
+                                           int argc,
+                                           v8::Handle<v8::Value> args[])
+{
+  // For now, we don't put any artificial limitations on the depth
+  // of recursion that stems from calling functions. This is in
+  // contrast to the script evaluations.
+  v8::Local<v8::Value> result;
+  {
+    ConsoleMessageScope scope;
+
+    // Evaluating the JavaScript could cause the frame to be deallocated,
+    // so we start the keep alive timer here.
+    // Frame::keepAlive method adds the ref count of the frame and sets a
+    // timer to decrease the ref count. It assumes that the current JavaScript
+    // execution finishs before firing the timer.
+    // See issue 1218756 and 914430.
+    m_frame->keepAlive();
+
+    result = function->Call(receiver, argc, args);
+  }
+
+  if (v8::V8::IsDead())
+    HandleFatalErrorInV8();
+
+  return result;
+}
+
+
+v8::Local<v8::Function> V8Proxy::GetConstructor(V8ClassIndex::V8WrapperType t){
+  // A DOM constructor is a function instance created from a DOM constructor
+  // template. There is one instance per context. A DOM constructor is
+  // different from a normal function in two ways:
+  //   1) it cannot be called as constructor (aka, used to create a DOM object)
+  //   2) its __proto__ points to Object.prototype rather than
+  //      Function.prototype.
+  // The reason for 2) is that, in Safari, a DOM constructor is a normal JS
+  // object, but not a function. Hotmail relies on the fact that, in Safari,
+  // HTMLElement.__proto__ == Object.prototype.
+  //
+  // m_object_prototype is a cache of the original Object.prototype.
+
+  ASSERT(ContextInitialized());
+  // Enter the context of the proxy to make sure that the
+  // function is constructed in the context corresponding to
+  // this proxy.
+  v8::Context::Scope scope(m_context);
+  v8::Handle<v8::FunctionTemplate> templ = GetTemplate(t);
+  // Getting the function might fail if we're running out of
+  // stack or memory.
+  v8::TryCatch try_catch;
+  v8::Local<v8::Function> value = templ->GetFunction();
+  if (value.IsEmpty())
+    return v8::Local<v8::Function>();
+  // Hotmail fix, see comments above.
+  value->Set(v8::String::New("__proto__"), m_object_prototype);
+  return value;
+}
+
+
+v8::Local<v8::Object> V8Proxy::CreateWrapperFromCache(V8ClassIndex::V8WrapperType type) {
+  int class_index = V8ClassIndex::ToInt(type);
+  v8::Local<v8::Value> cached_object =
+      m_wrapper_boilerplates->Get(v8::Integer::New(class_index));
+  if (cached_object->IsObject()) {
+    v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(cached_object);
+    return object->Clone();
+  }
+
+  // Not in cache.
+  InitContextIfNeeded();
+  v8::Context::Scope scope(m_context);
+  v8::Local<v8::Function> function = GetConstructor(type);
+  v8::Local<v8::Object> instance = SafeAllocation::NewInstance(function);
+  if (!instance.IsEmpty()) {
+    m_wrapper_boilerplates->Set(v8::Integer::New(class_index), instance);
+    return instance->Clone();
+  }
+  return v8::Local<v8::Object>();
+}
+
+
+// Get the string 'toString'.
+static v8::Persistent<v8::String> GetToStringName() {
+  static v8::Persistent<v8::String> value;
+  if (value.IsEmpty())
+    value = v8::Persistent<v8::String>::New(v8::String::New("toString"));
+  return value;
+}
+
+
+static v8::Handle<v8::Value> ConstructorToString(const v8::Arguments& args) {
+  // The DOM constructors' toString functions grab the current toString
+  // for Functions by taking the toString function of itself and then
+  // calling it with the constructor as its receiver.  This means that
+  // changes to the Function prototype chain or toString function are
+  // reflected when printing DOM constructors.  The only wart is that
+  // changes to a DOM constructor's toString's toString will cause the
+  // toString of the DOM constructor itself to change.  This is extremely
+  // obscure and unlikely to be a problem.
+  v8::Handle<v8::Value> val = args.Callee()->Get(GetToStringName());
+  if (!val->IsFunction()) return v8::String::New("");
+  return v8::Handle<v8::Function>::Cast(val)->Call(args.This(), 0, NULL);
+}
+
+
+v8::Persistent<v8::FunctionTemplate> V8Proxy::GetTemplate(
+    V8ClassIndex::V8WrapperType type)
+{
+  v8::Persistent<v8::FunctionTemplate>* cache_cell =
+      V8ClassIndex::GetCache(type);
+  if (!(*cache_cell).IsEmpty())
+    return *cache_cell;
+
+  // not found
+  FunctionTemplateFactory factory = V8ClassIndex::GetFactory(type);
+  v8::Persistent<v8::FunctionTemplate> desc = factory();
+  // DOM constructors are functions and should print themselves as such.
+  // However, we will later replace their prototypes with Object
+  // prototypes so we need to explicitly override toString on the
+  // instance itself.  If we later make DOM constructors full objects
+  // we can give them class names instead and Object.prototype.toString
+  // will work so we can remove this code.
+  static v8::Persistent<v8::FunctionTemplate> to_string_template;
+  if (to_string_template.IsEmpty()) {
+    to_string_template = v8::Persistent<v8::FunctionTemplate>::New(
+        v8::FunctionTemplate::New(ConstructorToString));
+  }
+  desc->Set(GetToStringName(), to_string_template);
+  switch (type) {
+    case V8ClassIndex::CSSSTYLEDECLARATION:
+      // The named property handler for style declarations has a
+      // setter.  Therefore, the interceptor has to be on the object
+      // itself and not on the prototype object.
+      desc->InstanceTemplate()->SetNamedPropertyHandler(
+          USE_NAMED_PROPERTY_GETTER(CSSStyleDeclaration),
+          USE_NAMED_PROPERTY_SETTER(CSSStyleDeclaration));
+      setCollectionStringOrNullIndexedGetter<CSSStyleDeclaration>(desc);
+      break;
+    case V8ClassIndex::CSSRULELIST:
+      setCollectionIndexedGetter<CSSRuleList, CSSRule>(desc,
+                                                       V8ClassIndex::CSSRULE);
+      break;
+    case V8ClassIndex::CSSVALUELIST:
+      setCollectionIndexedGetter<CSSValueList, CSSValue>(
+          desc,
+          V8ClassIndex::CSSVALUE);
+      break;
+    case V8ClassIndex::CSSVARIABLESDECLARATION:
+      setCollectionStringOrNullIndexedGetter<CSSVariablesDeclaration>(desc);
+      break;
+    case V8ClassIndex::WEBKITCSSTRANSFORMVALUE:
+      setCollectionIndexedGetter<WebKitCSSTransformValue, CSSValue>(
+          desc,
+          V8ClassIndex::CSSVALUE);
+      break;
+    case V8ClassIndex::UNDETECTABLEHTMLCOLLECTION:
+      desc->InstanceTemplate()->MarkAsUndetectable();  // fall through
+    case V8ClassIndex::HTMLCOLLECTION:
+      desc->InstanceTemplate()->SetNamedPropertyHandler(
+          USE_NAMED_PROPERTY_GETTER(HTMLCollection));
+      desc->InstanceTemplate()->SetCallAsFunctionHandler(
+          USE_CALLBACK(HTMLCollectionCallAsFunction));
+      setCollectionIndexedGetter<HTMLCollection, Node>(desc,
+                                                       V8ClassIndex::NODE);
+      break;
+    case V8ClassIndex::HTMLOPTIONSCOLLECTION:
+      setCollectionNamedGetter<HTMLOptionsCollection, Node>(
+          desc,
+          V8ClassIndex::NODE);
+      desc->InstanceTemplate()->SetIndexedPropertyHandler(
+          USE_INDEXED_PROPERTY_GETTER(HTMLOptionsCollection),
+          USE_INDEXED_PROPERTY_SETTER(HTMLOptionsCollection));
+      desc->InstanceTemplate()->SetCallAsFunctionHandler(
+          USE_CALLBACK(HTMLCollectionCallAsFunction));
+      break;
+    case V8ClassIndex::HTMLSELECTELEMENT:
+      desc->InstanceTemplate()->SetNamedPropertyHandler(
+          nodeCollectionNamedPropertyGetter<HTMLSelectElement>,
+          0,
+          0,
+          0,
+          0,
+          v8::Integer::New(V8ClassIndex::NODE));
+      desc->InstanceTemplate()->SetIndexedPropertyHandler(
+          nodeCollectionIndexedPropertyGetter<HTMLSelectElement>,
+          USE_INDEXED_PROPERTY_SETTER(HTMLSelectElementCollection),
+          0,
+          0,
+          nodeCollectionIndexedPropertyEnumerator<HTMLSelectElement>,
+          v8::Integer::New(V8ClassIndex::NODE));
+      break;
+    case V8ClassIndex::HTMLDOCUMENT: {
+      desc->InstanceTemplate()->SetNamedPropertyHandler(
+          USE_NAMED_PROPERTY_GETTER(HTMLDocument),
+          0,
+          0,
+          USE_NAMED_PROPERTY_DELETER(HTMLDocument));
+
+      // We add an extra internal field to all Document wrappers for
+      // storing a per document DOMImplementation wrapper.
+      //
+      // Additionally, we add two extra internal fields for
+      // HTMLDocuments to implement temporary shadowing of
+      // document.all.  One field holds an object that is used as a
+      // marker.  The other field holds the marker object if
+      // document.all is not shadowed and some other value if
+      // document.all is shadowed.
+      v8::Local<v8::ObjectTemplate> instance_template =
+        desc->InstanceTemplate();
+      ASSERT(instance_template->InternalFieldCount() ==
+             V8Custom::kDefaultWrapperInternalFieldCount);
+      instance_template->SetInternalFieldCount(
+          V8Custom::kHTMLDocumentInternalFieldCount);
+      break;
+    }
+#if ENABLE(SVG)
+    case V8ClassIndex::SVGDOCUMENT:  // fall through
+#endif
+    case V8ClassIndex::DOCUMENT: {
+      // We add an extra internal field to all Document wrappers for
+      // storing a per document DOMImplementation wrapper.
+      v8::Local<v8::ObjectTemplate> instance_template =
+        desc->InstanceTemplate();
+      ASSERT(instance_template->InternalFieldCount() ==
+             V8Custom::kDefaultWrapperInternalFieldCount);
+      instance_template->SetInternalFieldCount(
+          V8Custom::kDocumentMinimumInternalFieldCount);
+      break;
+    }
+    case V8ClassIndex::HTMLAPPLETELEMENT:  // fall through
+    case V8ClassIndex::HTMLEMBEDELEMENT:  // fall through
+    case V8ClassIndex::HTMLOBJECTELEMENT:
+      // HTMLAppletElement, HTMLEmbedElement and HTMLObjectElement are
+      // inherited from HTMLPlugInElement, and they share the same property
+      // handling code.
+      desc->InstanceTemplate()->SetNamedPropertyHandler(
+          USE_NAMED_PROPERTY_GETTER(HTMLPlugInElement),
+          USE_NAMED_PROPERTY_SETTER(HTMLPlugInElement));
+      desc->InstanceTemplate()->SetIndexedPropertyHandler(
+          USE_INDEXED_PROPERTY_GETTER(HTMLPlugInElement),
+          USE_INDEXED_PROPERTY_SETTER(HTMLPlugInElement));
+      desc->InstanceTemplate()->SetCallAsFunctionHandler(
+          USE_CALLBACK(HTMLPlugInElement));
+      break;
+    case V8ClassIndex::HTMLFRAMESETELEMENT:
+      desc->InstanceTemplate()->SetNamedPropertyHandler(
+          USE_NAMED_PROPERTY_GETTER(HTMLFrameSetElement));
+      break;
+    case V8ClassIndex::HTMLFORMELEMENT:
+      desc->InstanceTemplate()->SetNamedPropertyHandler(
+          USE_NAMED_PROPERTY_GETTER(HTMLFormElement));
+      desc->InstanceTemplate()->SetIndexedPropertyHandler(
+          USE_INDEXED_PROPERTY_GETTER(HTMLFormElement),
+          0,
+          0,
+          0,
+          nodeCollectionIndexedPropertyEnumerator<HTMLFormElement>,
+          v8::Integer::New(V8ClassIndex::NODE));
+      break;
+    case V8ClassIndex::CANVASPIXELARRAY:
+      desc->InstanceTemplate()->SetIndexedPropertyHandler(
+          USE_INDEXED_PROPERTY_GETTER(CanvasPixelArray),
+          USE_INDEXED_PROPERTY_SETTER(CanvasPixelArray));
+      break;
+    case V8ClassIndex::STYLESHEET:  // fall through
+    case V8ClassIndex::CSSSTYLESHEET: {
+      // We add an extra internal field to hold a reference to
+      // the owner node.
+      v8::Local<v8::ObjectTemplate> instance_template =
+        desc->InstanceTemplate();
+      ASSERT(instance_template->InternalFieldCount() ==
+             V8Custom::kDefaultWrapperInternalFieldCount);
+      instance_template->SetInternalFieldCount(
+          V8Custom::kStyleSheetInternalFieldCount);
+      break;
+    }
+    case V8ClassIndex::MEDIALIST:
+      setCollectionStringOrNullIndexedGetter<MediaList>(desc);
+      break;
+    case V8ClassIndex::MIMETYPEARRAY:
+      setCollectionIndexedAndNamedGetters<MimeTypeArray, MimeType>(
+          desc,
+          V8ClassIndex::MIMETYPE);
+      break;
+    case V8ClassIndex::NAMEDNODEMAP:
+      desc->InstanceTemplate()->SetNamedPropertyHandler(
+          USE_NAMED_PROPERTY_GETTER(NamedNodeMap));
+      desc->InstanceTemplate()->SetIndexedPropertyHandler(
+          USE_INDEXED_PROPERTY_GETTER(NamedNodeMap),
+          0,
+          0,
+          0,
+          collectionIndexedPropertyEnumerator<NamedNodeMap>,
+          v8::Integer::New(V8ClassIndex::NODE));
+      break;
+    case V8ClassIndex::NODELIST:
+      setCollectionIndexedGetter<NodeList, Node>(desc, V8ClassIndex::NODE);
+      desc->InstanceTemplate()->SetNamedPropertyHandler(
+          USE_NAMED_PROPERTY_GETTER(NodeList));
+      break;
+    case V8ClassIndex::PLUGIN:
+      setCollectionIndexedAndNamedGetters<Plugin, MimeType>(
+          desc,
+          V8ClassIndex::MIMETYPE);
+      break;
+    case V8ClassIndex::PLUGINARRAY:
+      setCollectionIndexedAndNamedGetters<PluginArray, Plugin>(
+          desc,
+          V8ClassIndex::PLUGIN);
+      break;
+    case V8ClassIndex::STYLESHEETLIST:
+      desc->InstanceTemplate()->SetNamedPropertyHandler(
+          USE_NAMED_PROPERTY_GETTER(StyleSheetList));
+      setCollectionIndexedGetter<StyleSheetList, StyleSheet>(
+          desc,
+          V8ClassIndex::STYLESHEET);
+      break;
+    case V8ClassIndex::DOMWINDOW: {
+      v8::Local<v8::Signature> default_signature = v8::Signature::New(desc);
+
+      desc->PrototypeTemplate()->SetNamedPropertyHandler(
+          USE_NAMED_PROPERTY_GETTER(DOMWindow));
+      desc->PrototypeTemplate()->SetIndexedPropertyHandler(
+          USE_INDEXED_PROPERTY_GETTER(DOMWindow));
+
+      desc->SetHiddenPrototype(true);
+
+      // Reserve spaces for references to location, history and
+      // navigator objects.
+      v8::Local<v8::ObjectTemplate> instance_template =
+          desc->InstanceTemplate();
+      instance_template->SetInternalFieldCount(
+          V8Custom::kDOMWindowInternalFieldCount);
+
+      // Set access check callbacks, but turned off initially.
+      // When a context is detached from a frame, turn on the access check.
+      // Turning on checks also invalidates inline caches of the object.
+      instance_template->SetAccessCheckCallbacks(
+          V8Custom::v8DOMWindowNamedSecurityCheck,
+          V8Custom::v8DOMWindowIndexedSecurityCheck,
+          v8::Integer::New(V8ClassIndex::DOMWINDOW),
+          false);
+      break;
+    }
+    case V8ClassIndex::LOCATION: {
+      // For security reasons, these functions are on the instance
+      // instead of on the prototype object to insure that they cannot
+      // be overwritten.
+      v8::Local<v8::ObjectTemplate> instance = desc->InstanceTemplate();
+      instance->SetAccessor(
+        v8::String::New("reload"),
+        V8Custom::v8LocationReloadAccessorGetter,
+        0,
+        v8::Handle<v8::Value>(),
+        v8::ALL_CAN_READ,
+        static_cast<v8::PropertyAttribute>(v8::DontDelete|v8::ReadOnly));
+
+      instance->SetAccessor(
+        v8::String::New("replace"),
+        V8Custom::v8LocationReplaceAccessorGetter,
+        0,
+        v8::Handle<v8::Value>(),
+        v8::ALL_CAN_READ,
+        static_cast<v8::PropertyAttribute>(v8::DontDelete|v8::ReadOnly));
+
+      instance->SetAccessor(
+        v8::String::New("assign"),
+        V8Custom::v8LocationAssignAccessorGetter,
+        0,
+        v8::Handle<v8::Value>(),
+        v8::ALL_CAN_READ,
+        static_cast<v8::PropertyAttribute>(v8::DontDelete|v8::ReadOnly));
+      break;
+    }
+    case V8ClassIndex::HISTORY: {
+      break;
+    }
+
+    case V8ClassIndex::MESSAGECHANNEL: {
+        // Reserve two more internal fields for referencing the port1
+        // and port2 wrappers.  This ensures that the port wrappers are
+        // kept alive when the channel wrapper is.
+        desc->SetCallHandler(USE_CALLBACK(MessageChannelConstructor));
+        v8::Local<v8::ObjectTemplate> instance_template =
+          desc->InstanceTemplate();
+        instance_template->SetInternalFieldCount(
+            V8Custom::kMessageChannelInternalFieldCount);
+        break;
+    }
+
+    case V8ClassIndex::MESSAGEPORT: {
+        // Reserve one more internal field for keeping event listeners.
+        v8::Local<v8::ObjectTemplate> instance_template =
+            desc->InstanceTemplate();
+        instance_template->SetInternalFieldCount(
+            V8Custom::kMessagePortInternalFieldCount);
+        break;
+    }
+
+#if ENABLE(WORKERS)
+    case V8ClassIndex::WORKER: {
+        // Reserve one more internal field for keeping event listeners.
+        v8::Local<v8::ObjectTemplate> instance_template =
+            desc->InstanceTemplate();
+        instance_template->SetInternalFieldCount(
+            V8Custom::kWorkerInternalFieldCount);
+        desc->SetCallHandler(USE_CALLBACK(WorkerConstructor));
+        break;
+    }
+
+    case V8ClassIndex::WORKERCONTEXT: {
+        // Reserve one more internal field for keeping event listeners.
+        v8::Local<v8::ObjectTemplate> instance_template =
+            desc->InstanceTemplate();
+        instance_template->SetInternalFieldCount(
+            V8Custom::kWorkerContextInternalFieldCount);
+        break;
+    }
+#endif  // WORKERS
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+    case V8ClassIndex::DOMAPPLICATIONCACHE: {
+        // Reserve one more internal field for keeping event listeners.
+        v8::Local<v8::ObjectTemplate> instance_template =
+            desc->InstanceTemplate();
+        instance_template->SetInternalFieldCount(
+            V8Custom::kDOMApplicationCacheFieldCount);
+        break;
+    }
+#endif
+
+    // The following objects are created from JavaScript.
+    case V8ClassIndex::DOMPARSER:
+      desc->SetCallHandler(USE_CALLBACK(DOMParserConstructor));
+      break;
+    case V8ClassIndex::WEBKITCSSMATRIX:
+      desc->SetCallHandler(USE_CALLBACK(WebKitCSSMatrixConstructor));
+      break;
+    case V8ClassIndex::WEBKITPOINT:
+      desc->SetCallHandler(USE_CALLBACK(WebKitPointConstructor));
+      break;
+    case V8ClassIndex::XMLSERIALIZER:
+      desc->SetCallHandler(USE_CALLBACK(XMLSerializerConstructor));
+      break;
+    case V8ClassIndex::XMLHTTPREQUEST: {
+      // Reserve one more internal field for keeping event listeners.
+      v8::Local<v8::ObjectTemplate> instance_template =
+          desc->InstanceTemplate();
+      instance_template->SetInternalFieldCount(
+          V8Custom::kXMLHttpRequestInternalFieldCount);
+      desc->SetCallHandler(USE_CALLBACK(XMLHttpRequestConstructor));
+      break;
+    }
+    case V8ClassIndex::XMLHTTPREQUESTUPLOAD: {
+      // Reserve one more internal field for keeping event listeners.
+      v8::Local<v8::ObjectTemplate> instance_template =
+          desc->InstanceTemplate();
+      instance_template->SetInternalFieldCount(
+          V8Custom::kXMLHttpRequestInternalFieldCount);
+      break;
+    }
+#if ENABLE(XPATH)    
+    case V8ClassIndex::XPATHEVALUATOR:
+      desc->SetCallHandler(USE_CALLBACK(XPathEvaluatorConstructor));
+      break;
+#endif
+#if ENABLE(XSLT)
+    case V8ClassIndex::XSLTPROCESSOR:
+      desc->SetCallHandler(USE_CALLBACK(XSLTProcessorConstructor));
+      break;
+#endif
+    default:
+      break;
+  }
+
+  *cache_cell = desc;
+  return desc;
+}
+
+
+bool V8Proxy::ContextInitialized()
+{
+    // m_context, m_global, m_object_prototype and m_wrapper_boilerplates should
+    // all be non-empty if if m_context is non-empty.
+    ASSERT(m_context.IsEmpty() || !m_global.IsEmpty());
+    ASSERT(m_context.IsEmpty() || !m_object_prototype.IsEmpty());
+    ASSERT(m_context.IsEmpty() || !m_wrapper_boilerplates.IsEmpty());
+    return !m_context.IsEmpty();
+}
+
+
+DOMWindow* V8Proxy::retrieveWindow()
+{
+    // TODO: This seems very fragile. How do we know that the global object
+    // from the current context is something sensible? Do we need to use the
+    // last entered here? Who calls this?
+    return retrieveWindow(v8::Context::GetCurrent());
+}
+
+
+DOMWindow* V8Proxy::retrieveWindow(v8::Handle<v8::Context> context)
+{
+    v8::Handle<v8::Object> global = context->Global();
+    ASSERT(!global.IsEmpty());
+    global = LookupDOMWrapper(V8ClassIndex::DOMWINDOW, global);
+    ASSERT(!global.IsEmpty());
+    return ToNativeObject<DOMWindow>(V8ClassIndex::DOMWINDOW, global);
+}
+
+
+Frame* V8Proxy::retrieveFrame(v8::Handle<v8::Context> context)
+{
+    return retrieveWindow(context)->frame();
+}
+
+
+Frame* V8Proxy::retrieveActiveFrame()
+{
+    v8::Handle<v8::Context> context = v8::Context::GetEntered();
+    if (context.IsEmpty())
+        return 0;
+    return retrieveFrame(context);
+}
+
+
+Frame* V8Proxy::retrieveFrame()
+{
+    DOMWindow* window = retrieveWindow();
+    return window ? window->frame() : 0;
+}
+
+
+V8Proxy* V8Proxy::retrieve()
+{
+    DOMWindow* window = retrieveWindow();
+    ASSERT(window);
+    return retrieve(window->frame());
+}
+
+V8Proxy* V8Proxy::retrieve(Frame* frame)
+{
+    if (!frame)
+        return 0;
+    return frame->script()->isEnabled() ? frame->script()->proxy() : 0;
+}
+
+
+V8Proxy* V8Proxy::retrieve(ScriptExecutionContext* context)
+{
+    if (!context->isDocument())
+        return 0;
+    return retrieve(static_cast<Document*>(context)->frame());
+}
+
+
+void V8Proxy::disconnectFrame()
+{
+    // disconnect all event listeners
+    DisconnectEventListeners();
+}
+
+
+bool V8Proxy::isEnabled()
+{
+    Settings* settings = m_frame->settings();
+    if (!settings)
+        return false;
+
+    // In the common case, JavaScript is enabled and we're done.
+    if (settings->isJavaScriptEnabled())
+        return true;
+
+    // If JavaScript has been disabled, we need to look at the frame to tell
+    // whether this script came from the web or the embedder. Scripts from the
+    // embedder are safe to run, but scripts from the other sources are
+    // disallowed.
+    Document* document = m_frame->document();
+    if (!document)
+        return false;
+
+    SecurityOrigin* origin = document->securityOrigin();
+    if (origin->protocol().isEmpty())
+        return false;  // Uninitialized document
+
+    if (origin->protocol() == "http" || origin->protocol() == "https")
+        return false;  // Web site
+
+    // TODO(darin): the following are application decisions, and they should
+    // not be made at this layer.  instead, we should bridge out to the
+    // embedder to allow them to override policy here.
+
+#if PLATFORM(CHROMIUM)
+    if (origin->protocol() == ChromiumBridge::uiResourceProtocol())
+        return true;   // Embedder's scripts are ok to run
+#endif
+
+    // If the scheme is ftp: or file:, an empty file name indicates a directory
+    // listing, which requires JavaScript to function properly.
+    const char* kDirProtocols[] = { "ftp", "file" };
+#if PLATFORM(ANDROID)
+    // TODO(fqian): port arraysize function to Android.
+    for (size_t i = 0; i < 2; ++i) {
+#else
+    for (size_t i = 0; i < arraysize(kDirProtocols); ++i) {
+#endif
+        if (origin->protocol() == kDirProtocols[i]) {
+            const KURL& url = document->url();
+            return url.pathAfterLastSlash() == url.pathEnd();
+        }
+    }
+
+    return false;  // Other protocols fall through to here
+}
+
+
+void V8Proxy::UpdateDocumentWrapper(v8::Handle<v8::Value> wrapper) {
+    ClearDocumentWrapper();
+
+    ASSERT(m_document.IsEmpty());
+    m_document = v8::Persistent<v8::Value>::New(wrapper);
+#ifndef NDEBUG
+    RegisterGlobalHandle(PROXY, this, m_document);
+#endif
+}
+
+
+void V8Proxy::ClearDocumentWrapper()
+{
+    if (!m_document.IsEmpty()) {
+#ifndef NDEBUG
+        UnregisterGlobalHandle(this, m_document);
+#endif
+        m_document.Dispose();
+        m_document.Clear();
+    }
+}
+
+
+void V8Proxy::DisposeContextHandles() {
+    if (!m_context.IsEmpty()) {
+        m_context.Dispose();
+        m_context.Clear();
+    }
+
+    if (!m_wrapper_boilerplates.IsEmpty()) {
+#ifndef NDEBUG
+        UnregisterGlobalHandle(this, m_wrapper_boilerplates);
+#endif
+        m_wrapper_boilerplates.Dispose();
+        m_wrapper_boilerplates.Clear();
+    }
+
+    if (!m_object_prototype.IsEmpty()) {
+#ifndef NDEBUG
+        UnregisterGlobalHandle(this, m_object_prototype);
+#endif
+        m_object_prototype.Dispose();
+        m_object_prototype.Clear();
+    }
+}
+
+void V8Proxy::clearForClose()
+{
+    if (!m_context.IsEmpty()) {
+        v8::HandleScope handle_scope;
+
+        ClearDocumentWrapper();
+        DisposeContextHandles();
+    }
+}
+
+
+void V8Proxy::clearForNavigation()
+{
+    if (!m_context.IsEmpty()) {
+        v8::HandleScope handle;
+        ClearDocumentWrapper();
+
+        v8::Context::Scope context_scope(m_context);
+
+        // Turn on access check on the old DOMWindow wrapper.
+        v8::Handle<v8::Object> wrapper =
+            LookupDOMWrapper(V8ClassIndex::DOMWINDOW, m_global);
+        ASSERT(!wrapper.IsEmpty());
+        wrapper->TurnOnAccessCheck();
+
+        // disconnect all event listeners
+        DisconnectEventListeners();
+
+        // Separate the context from its global object.
+        m_context->DetachGlobal();
+
+        DisposeContextHandles();
+
+        // Reinitialize the context so the global object points to
+        // the new DOM window.
+        InitContextIfNeeded();
+    }
+}
+
+
+void V8Proxy::SetSecurityToken() {
+    Document* document = m_frame->document();
+    // Setup security origin and security token
+    if (!document) {
+        m_context->UseDefaultSecurityToken();
+        return;
+    }
+
+    // Ask the document's SecurityOrigin to generate a security token.
+    // If two tokens are equal, then the SecurityOrigins canAccess each other.
+    // If two tokens are not equal, then we have to call canAccess.
+    // Note: we can't use the HTTPOrigin if it was set from the DOM.
+    SecurityOrigin* origin = document->securityOrigin();
+    String token;
+    if (!origin->domainWasSetInDOM())
+        token = document->securityOrigin()->toString();
+
+    // An empty or "null" token means we always have to call
+    // canAccess.  The toString method on securityOrigins returns the
+    // string "null" for empty security origins and for security
+    // origins that should only allow access to themselves.  In this
+    // case, we use the global object as the security token to avoid
+    // calling canAccess when a script accesses its own objects.
+    if (token.isEmpty() || token == "null") {
+        m_context->UseDefaultSecurityToken();
+        return;
+    }
+
+    CString utf8_token = token.utf8();
+    // NOTE: V8 does identity comparison in fast path, must use a symbol
+    // as the security token.
+    m_context->SetSecurityToken(
+        v8::String::NewSymbol(utf8_token.data(), utf8_token.length()));
+}
+
+
+void V8Proxy::updateDocument()
+{
+    if (!m_frame->document())
+        return;
+
+    if (m_global.IsEmpty()) {
+        ASSERT(m_context.IsEmpty());
+        return;
+    }
+
+    {
+        v8::HandleScope scope;
+        SetSecurityToken();
+    }
+}
+
+void V8Proxy::updateSecurityOrigin()
+{
+    v8::HandleScope scope;
+    SetSecurityToken();
+}
+
+// Same origin policy implementation:
+//
+// Same origin policy prevents JS code from domain A access JS & DOM objects
+// in a different domain B. There are exceptions and several objects are
+// accessible by cross-domain code. For example, the window.frames object is
+// accessible by code from a different domain, but window.document is not.
+//
+// The binding code sets security check callbacks on a function template,
+// and accessing instances of the template calls the callback function.
+// The callback function checks same origin policy.
+//
+// Callback functions are expensive. V8 uses a security token string to do
+// fast access checks for the common case where source and target are in the
+// same domain. A security token is a string object that represents
+// the protocol/url/port of a domain.
+//
+// There are special cases where a security token matching is not enough.
+// For example, JavaScript can set its domain to a super domain by calling
+// document.setDomain(...). In these cases, the binding code can reset
+// a context's security token to its global object so that the fast access
+// check will always fail.
+
+// Check if the current execution context can access a target frame.
+// First it checks same domain policy using the lexical context
+//
+// This is equivalent to KJS::Window::allowsAccessFrom(ExecState*, String&).
+bool V8Proxy::CanAccessPrivate(DOMWindow* target_window)
+{
+    ASSERT(target_window);
+
+    String message;
+
+    DOMWindow* origin_window = retrieveWindow();
+    if (origin_window == target_window)
+        return true;
+
+    if (!origin_window)
+        return false;
+
+    // JS may be attempting to access the "window" object, which should be
+    // valid, even if the document hasn't been constructed yet.
+    // If the document doesn't exist yet allow JS to access the window object.
+    if (!origin_window->document())
+        return true;
+
+    const SecurityOrigin* active_security_origin = origin_window->securityOrigin();
+    const SecurityOrigin* target_security_origin = target_window->securityOrigin();
+
+    // We have seen crashes were the security origin of the target has not been
+    // initialized.  Defend against that.
+    ASSERT(target_security_origin);
+    if (!target_security_origin)
+        return false;
+
+    if (active_security_origin->canAccess(target_security_origin))
+        return true;
+
+    // Allow access to a "about:blank" page if the dynamic context is a
+    // detached context of the same frame as the blank page.
+    if (target_security_origin->isEmpty() &&
+        origin_window->frame() == target_window->frame())
+        return true;
+
+    return false;
+}
+
+
+bool V8Proxy::CanAccessFrame(Frame* target, bool report_error)
+{
+    // The subject is detached from a frame, deny accesses.
+    if (!target)
+        return false;
+
+    if (!CanAccessPrivate(target->domWindow())) {
+        if (report_error)
+            ReportUnsafeAccessTo(target, REPORT_NOW);
+        return false;
+    }
+    return true;
+}
+
+
+bool V8Proxy::CheckNodeSecurity(Node* node)
+{
+    if (!node)
+        return false;
+
+    Frame* target = node->document()->frame();
+
+    if (!target)
+        return false;
+
+    return CanAccessFrame(target, true);
+}
+
+v8::Persistent<v8::Context> V8Proxy::createNewContext(
+    v8::Handle<v8::Object> global)
+{
+    v8::Persistent<v8::Context> result;
+
+    // Create a new environment using an empty template for the shadow
+    // object.  Reuse the global object if one has been created earlier.
+    v8::Persistent<v8::ObjectTemplate> globalTemplate =
+        V8DOMWindow::GetShadowObjectTemplate();
+    if (globalTemplate.IsEmpty())
+        return result;
+
+    // Install a security handler with V8.
+    globalTemplate->SetAccessCheckCallbacks(
+        V8Custom::v8DOMWindowNamedSecurityCheck,
+        V8Custom::v8DOMWindowIndexedSecurityCheck,
+        v8::Integer::New(V8ClassIndex::DOMWINDOW));
+
+    // Dynamically tell v8 about our extensions now.
+    const char** extensionNames = new const char*[m_extensions.size()];
+    int index = 0;
+    for (V8ExtensionList::iterator it = m_extensions.begin();
+         it != m_extensions.end(); ++it) {
+        if (it->scheme.length() > 0 &&
+            it->scheme != m_frame->document()->url().protocol())
+            continue;
+
+        extensionNames[index++] = it->extension->name();
+    }
+    v8::ExtensionConfiguration extensions(index, extensionNames);
+    result = v8::Context::New(&extensions, globalTemplate, global);
+    delete [] extensionNames;
+    extensionNames = 0;
+
+    return result;
+}
+
+// Create a new environment and setup the global object.
+//
+// The global object corresponds to a DOMWindow instance.  However, to
+// allow properties of the JS DOMWindow instance to be shadowed, we
+// use a shadow object as the global object and use the JS DOMWindow
+// instance as the prototype for that shadow object.  The JS DOMWindow
+// instance is undetectable from javascript code because the __proto__
+// accessors skip that object.
+//
+// The shadow object and the DOMWindow instance are seen as one object
+// from javascript.  The javascript object that corresponds to a
+// DOMWindow instance is the shadow object.  When mapping a DOMWindow
+// instance to a V8 object, we return the shadow object.
+//
+// To implement split-window, see
+//   1) https://bugs.webkit.org/show_bug.cgi?id=17249
+//   2) https://wiki.mozilla.org/Gecko:SplitWindow
+//   3) https://bugzilla.mozilla.org/show_bug.cgi?id=296639
+// we need to split the shadow object further into two objects:
+// an outer window and an inner window. The inner window is the hidden
+// prototype of the outer window. The inner window is the default
+// global object of the context. A variable declared in the global
+// scope is a property of the inner window.
+//
+// The outer window sticks to a Frame, it is exposed to JavaScript
+// via window.window, window.self, window.parent, etc. The outer window
+// has a security token which is the domain. The outer window cannot
+// have its own properties. window.foo = 'x' is delegated to the
+// inner window.
+//
+// When a frame navigates to a new page, the inner window is cut off
+// the outer window, and the outer window identify is preserved for
+// the frame. However, a new inner window is created for the new page.
+// If there are JS code holds a closure to the old inner window,
+// it won't be able to reach the outer window via its global object.
+void V8Proxy::InitContextIfNeeded()
+{
+  // Bail out if the context has already been initialized.
+  if (!m_context.IsEmpty())
+      return;
+
+  // Create a handle scope for all local handles.
+  v8::HandleScope handle_scope;
+
+  // Setup the security handlers and message listener.  This only has
+  // to be done once.
+  static bool v8_initialized = false;
+  if (!v8_initialized) {
+    // Tells V8 not to call the default OOM handler, binding code
+    // will handle it.
+    v8::V8::IgnoreOutOfMemoryException();
+    v8::V8::SetFatalErrorHandler(ReportFatalErrorInV8);
+
+    v8::V8::SetGlobalGCPrologueCallback(&GCPrologue);
+    v8::V8::SetGlobalGCEpilogueCallback(&GCEpilogue);
+
+    v8::V8::AddMessageListener(HandleConsoleMessage);
+
+    v8::V8::SetFailedAccessCheckCallbackFunction(ReportUnsafeJavaScriptAccess);
+
+    v8_initialized = true;
+  }
+
+  m_context = createNewContext(m_global);
+  if (m_context.IsEmpty())
+    return;
+
+  // Starting from now, use local context only.
+  v8::Local<v8::Context> context = GetContext();
+  v8::Context::Scope context_scope(context);
+
+  // Store the first global object created so we can reuse it.
+  if (m_global.IsEmpty()) {
+    m_global = v8::Persistent<v8::Object>::New(context->Global());
+    // Bail out if allocation of the first global objects fails.
+    if (m_global.IsEmpty()) {
+      DisposeContextHandles();
+      return;
+    }
+#ifndef NDEBUG
+    RegisterGlobalHandle(PROXY, this, m_global);
+#endif
+  }
+
+  // Allocate strings used during initialization.
+  v8::Handle<v8::String> object_string = v8::String::New("Object");
+  v8::Handle<v8::String> prototype_string = v8::String::New("prototype");
+  v8::Handle<v8::String> implicit_proto_string = v8::String::New("__proto__");
+  // Bail out if allocation failed.
+  if (object_string.IsEmpty() ||
+      prototype_string.IsEmpty() ||
+      implicit_proto_string.IsEmpty()) {
+    DisposeContextHandles();
+    return;
+  }
+
+  // Allocate clone cache and pre-allocated objects
+  v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(
+      m_global->Get(object_string));
+  m_object_prototype = v8::Persistent<v8::Value>::New(
+      object->Get(prototype_string));
+  m_wrapper_boilerplates = v8::Persistent<v8::Array>::New(
+      v8::Array::New(V8ClassIndex::WRAPPER_TYPE_COUNT));
+  // Bail out if allocation failed.
+  if (m_object_prototype.IsEmpty()) {
+    DisposeContextHandles();
+    return;
+  }
+#ifndef NDEBUG
+  RegisterGlobalHandle(PROXY, this, m_object_prototype);
+  RegisterGlobalHandle(PROXY, this, m_wrapper_boilerplates);
+#endif
+
+  // Create a new JS window object and use it as the prototype for the
+  // shadow global object.
+  v8::Handle<v8::Function> window_constructor =
+      GetConstructor(V8ClassIndex::DOMWINDOW);
+  v8::Local<v8::Object> js_window =
+      SafeAllocation::NewInstance(window_constructor);
+  // Bail out if allocation failed.
+  if (js_window.IsEmpty()) {
+    DisposeContextHandles();
+    return;
+  }
+
+  DOMWindow* window = m_frame->domWindow();
+
+  // Wrap the window.
+  SetDOMWrapper(js_window,
+                V8ClassIndex::ToInt(V8ClassIndex::DOMWINDOW),
+                window);
+
+  window->ref();
+  V8Proxy::SetJSWrapperForDOMObject(window,
+      v8::Persistent<v8::Object>::New(js_window));
+
+  // Insert the window instance as the prototype of the shadow object.
+  v8::Handle<v8::Object> v8_global = context->Global();
+  v8_global->Set(implicit_proto_string, js_window);
+
+  SetSecurityToken();
+
+  m_frame->loader()->dispatchWindowObjectAvailable();
+}
+
+
+void V8Proxy::SetDOMException(int exception_code)
+{
+  if (exception_code <= 0)
+      return;
+
+  ExceptionCodeDescription description;
+  getExceptionCodeDescription(exception_code, description);
+
+  v8::Handle<v8::Value> exception;
+  switch (description.type) {
+    case DOMExceptionType:
+      exception = ToV8Object(V8ClassIndex::DOMCOREEXCEPTION,
+                             DOMCoreException::create(description));
+      break;
+    case RangeExceptionType:
+      exception = ToV8Object(V8ClassIndex::RANGEEXCEPTION,
+                             RangeException::create(description));
+      break;
+    case EventExceptionType:
+      exception = ToV8Object(V8ClassIndex::EVENTEXCEPTION,
+                             EventException::create(description));
+      break;
+    case XMLHttpRequestExceptionType:
+      exception = ToV8Object(V8ClassIndex::XMLHTTPREQUESTEXCEPTION,
+                             XMLHttpRequestException::create(description));
+      break;
+#if ENABLE(SVG)
+    case SVGExceptionType:
+      exception = ToV8Object(V8ClassIndex::SVGEXCEPTION,
+                             SVGException::create(description));
+      break;
+#endif
+#if ENABLE(XPATH)
+    case XPathExceptionType:
+      exception = ToV8Object(V8ClassIndex::XPATHEXCEPTION,
+                             XPathException::create(description));
+      break;
+#endif
+  }
+
+  ASSERT(!exception.IsEmpty());
+  v8::ThrowException(exception);
+}
+
+v8::Handle<v8::Value> V8Proxy::ThrowError(ErrorType type, const char* message)
+{
+  switch (type) {
+    case RANGE_ERROR:
+      return v8::ThrowException(v8::Exception::RangeError(v8String(message)));
+    case REFERENCE_ERROR:
+      return v8::ThrowException(
+          v8::Exception::ReferenceError(v8String(message)));
+    case SYNTAX_ERROR:
+      return v8::ThrowException(v8::Exception::SyntaxError(v8String(message)));
+    case TYPE_ERROR:
+      return v8::ThrowException(v8::Exception::TypeError(v8String(message)));
+    case GENERAL_ERROR:
+      return v8::ThrowException(v8::Exception::Error(v8String(message)));
+    default:
+      ASSERT(false);
+      return v8::Handle<v8::Value>();
+  }
+}
+
+v8::Local<v8::Context> V8Proxy::GetContext(Frame* frame)
+{
+    V8Proxy* proxy = retrieve(frame);
+    if (!proxy)
+        return v8::Local<v8::Context>();
+
+    proxy->InitContextIfNeeded();
+    return proxy->GetContext();
+}
+
+v8::Local<v8::Context> V8Proxy::GetCurrentContext()
+{
+    return v8::Context::GetCurrent();
+}
+
+v8::Handle<v8::Value> V8Proxy::ToV8Object(V8ClassIndex::V8WrapperType type, void* imp)
+{
+  ASSERT(type != V8ClassIndex::EVENTLISTENER);
+  ASSERT(type != V8ClassIndex::EVENTTARGET);
+  ASSERT(type != V8ClassIndex::EVENT);
+
+  bool is_active_dom_object = false;
+  switch (type) {
+#define MAKE_CASE(TYPE, NAME) case V8ClassIndex::TYPE:
+    DOM_NODE_TYPES(MAKE_CASE)
+#if ENABLE(SVG)
+    SVG_NODE_TYPES(MAKE_CASE)
+#endif
+      return NodeToV8Object(static_cast<Node*>(imp));
+    case V8ClassIndex::CSSVALUE:
+      return CSSValueToV8Object(static_cast<CSSValue*>(imp));
+    case V8ClassIndex::CSSRULE:
+      return CSSRuleToV8Object(static_cast<CSSRule*>(imp));
+    case V8ClassIndex::STYLESHEET:
+      return StyleSheetToV8Object(static_cast<StyleSheet*>(imp));
+    case V8ClassIndex::DOMWINDOW:
+      return WindowToV8Object(static_cast<DOMWindow*>(imp));
+#if ENABLE(SVG)
+    SVG_NONNODE_TYPES(MAKE_CASE)
+      if (type == V8ClassIndex::SVGELEMENTINSTANCE)
+        return SVGElementInstanceToV8Object(static_cast<SVGElementInstance*>(imp));
+      return SVGObjectWithContextToV8Object(type, imp);
+#endif
+
+    ACTIVE_DOM_OBJECT_TYPES(MAKE_CASE)
+      is_active_dom_object = true;
+      break;
+    default:
+      break;
+  }
+
+#undef MAKE_CASE
+
+  if (!imp) return v8::Null();
+
+  // Non DOM node
+  v8::Persistent<v8::Object> result = is_active_dom_object ?
+                                      getActiveDOMObjectMap().get(imp) :
+                                      getDOMObjectMap().get(imp);
+  if (result.IsEmpty()) {
+    v8::Local<v8::Object> v8obj = InstantiateV8Object(type, type, imp);
+    if (!v8obj.IsEmpty()) {
+      // Go through big switch statement, it has some duplications
+      // that were handled by code above (such as CSSVALUE, CSSRULE, etc).
+      switch (type) {
+#define MAKE_CASE(TYPE, NAME) \
+        case V8ClassIndex::TYPE: static_cast<NAME*>(imp)->ref(); break;
+        DOM_OBJECT_TYPES(MAKE_CASE)
+#undef MAKE_CASE
+      default:
+        ASSERT(false);
+      }
+      result = v8::Persistent<v8::Object>::New(v8obj);
+      if (is_active_dom_object)
+        SetJSWrapperForActiveDOMObject(imp, result);
+      else
+        SetJSWrapperForDOMObject(imp, result);
+
+      // Special case for non-node objects History, Location and
+      // Navigator. Both Safari and FF let Location and Navigator JS
+      // wrappers survive GC. To mimic their behaviors, V8 creates
+      // hidden references from the DOMWindow to these wrapper
+      // objects. These references get cleared when the DOMWindow is
+      // reused by a new page.
+      switch (type) {
+        case V8ClassIndex::HISTORY:
+          SetHiddenWindowReference(static_cast<History*>(imp)->frame(),
+                                   V8Custom::kDOMWindowHistoryIndex, result);
+          break;
+        case V8ClassIndex::NAVIGATOR:
+          SetHiddenWindowReference(static_cast<Navigator*>(imp)->frame(),
+                                   V8Custom::kDOMWindowNavigatorIndex, result);
+          break;
+        case V8ClassIndex::LOCATION:
+          SetHiddenWindowReference(static_cast<Location*>(imp)->frame(),
+                                   V8Custom::kDOMWindowLocationIndex, result);
+          break;
+        default:
+          break;
+      }
+    }
+  }
+  return result;
+}
+
+
+void V8Proxy::SetHiddenWindowReference(Frame* frame,
+                                       const int internal_index,
+                                       v8::Handle<v8::Object> jsobj)
+{
+    // Get DOMWindow
+    if (!frame) return;  // Object might be detached from window
+    v8::Handle<v8::Context> context = GetContext(frame);
+    if (context.IsEmpty()) return;
+
+    ASSERT(internal_index < V8Custom::kDOMWindowInternalFieldCount);
+
+    v8::Handle<v8::Object> global = context->Global();
+    // Look for real DOM wrapper.
+    global = LookupDOMWrapper(V8ClassIndex::DOMWINDOW, global);
+    ASSERT(!global.IsEmpty());
+    ASSERT(global->GetInternalField(internal_index)->IsUndefined());
+    global->SetInternalField(internal_index, jsobj);
+}
+
+
+V8ClassIndex::V8WrapperType V8Proxy::GetDOMWrapperType(v8::Handle<v8::Object> object)
+{
+  ASSERT(MaybeDOMWrapper(object));
+  v8::Handle<v8::Value> type =
+      object->GetInternalField(V8Custom::kDOMWrapperTypeIndex);
+    return V8ClassIndex::FromInt(type->Int32Value());
+}
+
+
+void* V8Proxy::ToNativeObjectImpl(V8ClassIndex::V8WrapperType type,
+                                  v8::Handle<v8::Value> object)
+{
+  // Native event listener is per frame, it cannot be handled
+  // by this generic function.
+  ASSERT(type != V8ClassIndex::EVENTLISTENER);
+  ASSERT(type != V8ClassIndex::EVENTTARGET);
+
+  ASSERT(MaybeDOMWrapper(object));
+
+  switch (type) {
+#define MAKE_CASE(TYPE, NAME) case V8ClassIndex::TYPE:
+    DOM_NODE_TYPES(MAKE_CASE)
+#if ENABLE(SVG)
+    SVG_NODE_TYPES(MAKE_CASE)
+#endif
+      ASSERT(false);
+      return NULL;
+    case V8ClassIndex::XMLHTTPREQUEST:
+      return DOMWrapperToNative<XMLHttpRequest>(object);
+    case V8ClassIndex::EVENT:
+      return DOMWrapperToNative<Event>(object);
+    case V8ClassIndex::CSSRULE:
+      return DOMWrapperToNative<CSSRule>(object);
+    default:
+      break;
+  }
+#undef MAKE_CASE
+
+  return DOMWrapperToNative<void>(object);
+}
+
+v8::Handle<v8::Object> V8Proxy::LookupDOMWrapper(
+    V8ClassIndex::V8WrapperType type, v8::Handle<v8::Value> value)
+{
+    if (value.IsEmpty())
+        return v8::Handle<v8::Object>();
+
+    v8::Handle<v8::FunctionTemplate> desc = V8Proxy::GetTemplate(type);
+    while (value->IsObject()) {
+        v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(value);
+        if (desc->HasInstance(object))
+            return object;
+
+        value = object->GetPrototype();
+    }
+    return v8::Handle<v8::Object>();
+}
+
+
+PassRefPtr<NodeFilter> V8Proxy::ToNativeNodeFilter(v8::Handle<v8::Value> filter)
+{
+    // A NodeFilter is used when walking through a DOM tree or iterating tree
+    // nodes.
+    // TODO: we may want to cache NodeFilterCondition and NodeFilter
+    // object, but it is minor.
+    // NodeFilter is passed to NodeIterator that has a ref counted pointer
+    // to NodeFilter. NodeFilter has a ref counted pointer to NodeFilterCondition.
+    // In NodeFilterCondition, filter object is persisted in its constructor,
+    // and disposed in its destructor.
+    if (!filter->IsFunction())
+        return 0;
+
+    NodeFilterCondition* cond = new V8NodeFilterCondition(filter);
+    return NodeFilter::create(cond);
+}
+
+
+v8::Local<v8::Object> V8Proxy::InstantiateV8Object(
+    V8ClassIndex::V8WrapperType desc_type,
+    V8ClassIndex::V8WrapperType cptr_type,
+    void* imp)
+{
+  // Make a special case for document.all
+  if (desc_type == V8ClassIndex::HTMLCOLLECTION &&
+      static_cast<HTMLCollection*>(imp)->type() == HTMLCollection::DocAll) {
+    desc_type = V8ClassIndex::UNDETECTABLEHTMLCOLLECTION;
+  }
+
+  V8Proxy* proxy = V8Proxy::retrieve();
+  v8::Local<v8::Object> instance;
+  if (proxy) {
+    instance = proxy->CreateWrapperFromCache(desc_type);
+  } else {
+    v8::Local<v8::Function> function = GetTemplate(desc_type)->GetFunction();
+    instance = SafeAllocation::NewInstance(function);
+  }
+  if (!instance.IsEmpty()) {
+    // Avoid setting the DOM wrapper for failed allocations.
+    SetDOMWrapper(instance, V8ClassIndex::ToInt(cptr_type), imp);
+  }
+  return instance;
+}
+
+v8::Handle<v8::Value> V8Proxy::CheckNewLegal(const v8::Arguments& args)
+{
+    if (!AllowAllocation::m_current)
+        return ThrowError(TYPE_ERROR, "Illegal constructor");
+
+    return args.This();
+}
+
+void V8Proxy::SetDOMWrapper(v8::Handle<v8::Object> obj, int type, void* cptr)
+{
+  ASSERT(obj->InternalFieldCount() >= 2);
+  obj->SetInternalField(V8Custom::kDOMWrapperObjectIndex, WrapCPointer(cptr));
+  obj->SetInternalField(V8Custom::kDOMWrapperTypeIndex, v8::Integer::New(type));
+}
+
+
+#ifndef NDEBUG
+bool V8Proxy::MaybeDOMWrapper(v8::Handle<v8::Value> value)
+{
+  if (value.IsEmpty() || !value->IsObject()) return false;
+
+  v8::Handle<v8::Object> obj = v8::Handle<v8::Object>::Cast(value);
+  if (obj->InternalFieldCount() == 0) return false;
+
+  ASSERT(obj->InternalFieldCount() >=
+         V8Custom::kDefaultWrapperInternalFieldCount);
+
+  v8::Handle<v8::Value> type =
+      obj->GetInternalField(V8Custom::kDOMWrapperTypeIndex);
+  ASSERT(type->IsInt32());
+  ASSERT(V8ClassIndex::INVALID_CLASS_INDEX < type->Int32Value() &&
+    type->Int32Value() < V8ClassIndex::CLASSINDEX_END);
+
+  v8::Handle<v8::Value> wrapper =
+      obj->GetInternalField(V8Custom::kDOMWrapperObjectIndex);
+  ASSERT(wrapper->IsNumber() || wrapper->IsExternal());
+
+  return true;
+}
+#endif
+
+
+bool V8Proxy::IsDOMEventWrapper(v8::Handle<v8::Value> value)
+{
+  // All kinds of events use EVENT as dom type in JS wrappers.
+  // See EventToV8Object
+  return IsWrapperOfType(value, V8ClassIndex::EVENT);
+}
+
+bool V8Proxy::IsWrapperOfType(v8::Handle<v8::Value> value,
+                              V8ClassIndex::V8WrapperType classType)
+{
+  if (value.IsEmpty() || !value->IsObject()) return false;
+
+  v8::Handle<v8::Object> obj = v8::Handle<v8::Object>::Cast(value);
+  if (obj->InternalFieldCount() == 0) return false;
+
+  ASSERT(obj->InternalFieldCount() >=
+         V8Custom::kDefaultWrapperInternalFieldCount);
+
+  v8::Handle<v8::Value> wrapper =
+      obj->GetInternalField(V8Custom::kDOMWrapperObjectIndex);
+  ASSERT(wrapper->IsNumber() || wrapper->IsExternal());
+
+  v8::Handle<v8::Value> type =
+    obj->GetInternalField(V8Custom::kDOMWrapperTypeIndex);
+  ASSERT(type->IsInt32());
+  ASSERT(V8ClassIndex::INVALID_CLASS_INDEX < type->Int32Value() &&
+    type->Int32Value() < V8ClassIndex::CLASSINDEX_END);
+
+  return V8ClassIndex::FromInt(type->Int32Value()) == classType;
+}
+
+#if ENABLE(VIDEO)
+#define FOR_EACH_VIDEO_TAG(macro)                \
+  macro(audio, AUDIO)                            \
+  macro(source, SOURCE)                          \
+  macro(video, VIDEO)
+#else
+#define FOR_EACH_VIDEO_TAG(macro)
+#endif
+
+#define FOR_EACH_TAG(macro)                      \
+  macro(a, ANCHOR)                               \
+  macro(applet, APPLET)                          \
+  macro(area, AREA)                              \
+  macro(base, BASE)                              \
+  macro(basefont, BASEFONT)                      \
+  macro(blockquote, BLOCKQUOTE)                  \
+  macro(body, BODY)                              \
+  macro(br, BR)                                  \
+  macro(button, BUTTON)                          \
+  macro(caption, TABLECAPTION)                   \
+  macro(col, TABLECOL)                           \
+  macro(colgroup, TABLECOL)                      \
+  macro(del, MOD)                                \
+  macro(canvas, CANVAS)                          \
+  macro(dir, DIRECTORY)                          \
+  macro(div, DIV)                                \
+  macro(dl, DLIST)                               \
+  macro(embed, EMBED)                            \
+  macro(fieldset, FIELDSET)                      \
+  macro(font, FONT)                              \
+  macro(form, FORM)                              \
+  macro(frame, FRAME)                            \
+  macro(frameset, FRAMESET)                      \
+  macro(h1, HEADING)                             \
+  macro(h2, HEADING)                             \
+  macro(h3, HEADING)                             \
+  macro(h4, HEADING)                             \
+  macro(h5, HEADING)                             \
+  macro(h6, HEADING)                             \
+  macro(head, HEAD)                              \
+  macro(hr, HR)                                  \
+  macro(html, HTML)                              \
+  macro(img, IMAGE)                              \
+  macro(iframe, IFRAME)                          \
+  macro(image, IMAGE)                            \
+  macro(input, INPUT)                            \
+  macro(ins, MOD)                                \
+  macro(isindex, ISINDEX)                        \
+  macro(keygen, SELECT)                          \
+  macro(label, LABEL)                            \
+  macro(legend, LEGEND)                          \
+  macro(li, LI)                                  \
+  macro(link, LINK)                              \
+  macro(listing, PRE)                            \
+  macro(map, MAP)                                \
+  macro(marquee, MARQUEE)                        \
+  macro(menu, MENU)                              \
+  macro(meta, META)                              \
+  macro(object, OBJECT)                          \
+  macro(ol, OLIST)                               \
+  macro(optgroup, OPTGROUP)                      \
+  macro(option, OPTION)                          \
+  macro(p, PARAGRAPH)                            \
+  macro(param, PARAM)                            \
+  macro(pre, PRE)                                \
+  macro(q, QUOTE)                                \
+  macro(script, SCRIPT)                          \
+  macro(select, SELECT)                          \
+  macro(style, STYLE)                            \
+  macro(table, TABLE)                            \
+  macro(thead, TABLESECTION)                     \
+  macro(tbody, TABLESECTION)                     \
+  macro(tfoot, TABLESECTION)                     \
+  macro(td, TABLECELL)                           \
+  macro(th, TABLECELL)                           \
+  macro(tr, TABLEROW)                            \
+  macro(textarea, TEXTAREA)                      \
+  macro(title, TITLE)                            \
+  macro(ul, ULIST)                               \
+  macro(xmp, PRE)
+
+V8ClassIndex::V8WrapperType V8Proxy::GetHTMLElementType(HTMLElement* element)
+{
+  static HashMap<String, V8ClassIndex::V8WrapperType> map;
+  if (map.isEmpty()) {
+#define ADD_TO_HASH_MAP(tag, name) \
+    map.set(#tag, V8ClassIndex::HTML##name##ELEMENT);
+FOR_EACH_TAG(ADD_TO_HASH_MAP)
+#if ENABLE(VIDEO)
+    if (MediaPlayer::isAvailable()) {
+FOR_EACH_VIDEO_TAG(ADD_TO_HASH_MAP)
+    }
+#endif
+#undef ADD_TO_HASH_MAP
+  }
+
+  V8ClassIndex::V8WrapperType t = map.get(element->localName().impl());
+  if (t == 0)
+      return V8ClassIndex::HTMLELEMENT;
+  return t;
+}
+#undef FOR_EACH_TAG
+
+#if ENABLE(SVG)
+
+#if ENABLE(SVG_ANIMATION)
+#define FOR_EACH_ANIMATION_TAG(macro) \
+    macro(animateColor, ANIMATECOLOR) \
+    macro(animate, ANIMATE) \
+    macro(animateTransform, ANIMATETRANSFORM) \
+    macro(set, SET)
+#else
+#define FOR_EACH_ANIMATION_TAG(macro)
+#endif
+
+#if ENABLE(SVG_FILTERS)
+#define FOR_EACH_FILTERS_TAG(macro) \
+    macro(feBlend, FEBLEND) \
+    macro(feColorMatrix, FECOLORMATRIX) \
+    macro(feComponentTransfer, FECOMPONENTTRANSFER) \
+    macro(feComposite, FECOMPOSITE) \
+    macro(feDiffuseLighting, FEDIFFUSELIGHTING) \
+    macro(feDisplacementMap, FEDISPLACEMENTMAP) \
+    macro(feDistantLight, FEDISTANTLIGHT) \
+    macro(feFlood, FEFLOOD) \
+    macro(feFuncA, FEFUNCA) \
+    macro(feFuncB, FEFUNCB) \
+    macro(feFuncG, FEFUNCG) \
+    macro(feFuncR, FEFUNCR) \
+    macro(feGaussianBlur, FEGAUSSIANBLUR) \
+    macro(feImage, FEIMAGE) \
+    macro(feMerge, FEMERGE) \
+    macro(feMergeNode, FEMERGENODE) \
+    macro(feOffset, FEOFFSET) \
+    macro(fePointLight, FEPOINTLIGHT) \
+    macro(feSpecularLighting, FESPECULARLIGHTING) \
+    macro(feSpotLight, FESPOTLIGHT) \
+    macro(feTile, FETILE) \
+    macro(feTurbulence, FETURBULENCE) \
+    macro(filter, FILTER)
+#else
+#define FOR_EACH_FILTERS_TAG(macro)
+#endif
+
+#if ENABLE(SVG_FONTS)
+#define FOR_EACH_FONTS_TAG(macro) \
+    macro(definition-src, DEFINITIONSRC) \
+    macro(font-face, FONTFACE) \
+    macro(font-face-format, FONTFACEFORMAT) \
+    macro(font-face-name, FONTFACENAME) \
+    macro(font-face-src, FONTFACESRC) \
+    macro(font-face-uri, FONTFACEURI)
+#else
+#define FOR_EACH_FONTS_TAG(marco)
+#endif
+
+#if ENABLE(SVG_FOREIGN_OBJECT)
+#define FOR_EACH_FOREIGN_OBJECT_TAG(macro) \
+    macro(foreignObject, FOREIGNOBJECT)
+#else
+#define FOR_EACH_FOREIGN_OBJECT_TAG(macro)
+#endif
+
+#if ENABLE(SVG_USE)
+#define FOR_EACH_USE_TAG(macro) \
+    macro(use, USE)
+#else
+#define FOR_EACH_USE_TAG(macro)
+#endif
+
+#define FOR_EACH_TAG(macro) \
+    FOR_EACH_ANIMATION_TAG(macro) \
+    FOR_EACH_FILTERS_TAG(macro) \
+    FOR_EACH_FONTS_TAG(macro) \
+    FOR_EACH_FOREIGN_OBJECT_TAG(macro) \
+    FOR_EACH_USE_TAG(macro) \
+    macro(a, A) \
+    macro(altGlyph, ALTGLYPH) \
+    macro(circle, CIRCLE) \
+    macro(clipPath, CLIPPATH) \
+    macro(cursor, CURSOR) \
+    macro(defs, DEFS) \
+    macro(desc, DESC) \
+    macro(ellipse, ELLIPSE) \
+    macro(g, G) \
+    macro(glyph, GLYPH) \
+    macro(image, IMAGE) \
+    macro(linearGradient, LINEARGRADIENT) \
+    macro(line, LINE) \
+    macro(marker, MARKER) \
+    macro(mask, MASK) \
+    macro(metadata, METADATA) \
+    macro(path, PATH) \
+    macro(pattern, PATTERN) \
+    macro(polyline, POLYLINE) \
+    macro(polygon, POLYGON) \
+    macro(radialGradient, RADIALGRADIENT) \
+    macro(rect, RECT) \
+    macro(script, SCRIPT) \
+    macro(stop, STOP) \
+    macro(style, STYLE) \
+    macro(svg, SVG) \
+    macro(switch, SWITCH) \
+    macro(symbol, SYMBOL) \
+    macro(text, TEXT) \
+    macro(textPath, TEXTPATH) \
+    macro(title, TITLE) \
+    macro(tref, TREF) \
+    macro(tspan, TSPAN) \
+    macro(view, VIEW) \
+    // end of macro
+
+V8ClassIndex::V8WrapperType V8Proxy::GetSVGElementType(SVGElement* element)
+{
+  static HashMap<String, V8ClassIndex::V8WrapperType> map;
+  if (map.isEmpty()) {
+#define ADD_TO_HASH_MAP(tag, name) \
+    map.set(#tag, V8ClassIndex::SVG##name##ELEMENT);
+FOR_EACH_TAG(ADD_TO_HASH_MAP)
+#undef ADD_TO_HASH_MAP
+  }
+
+  V8ClassIndex::V8WrapperType t = map.get(element->localName().impl());
+  if (t == 0) return V8ClassIndex::SVGELEMENT;
+  return t;
+}
+#undef FOR_EACH_TAG
+
+#endif  // ENABLE(SVG)
+
+
+v8::Handle<v8::Value> V8Proxy::EventToV8Object(Event* event)
+{
+  if (!event)
+      return v8::Null();
+
+  v8::Handle<v8::Object> wrapper = getDOMObjectMap().get(event);
+  if (!wrapper.IsEmpty())
+    return wrapper;
+
+  V8ClassIndex::V8WrapperType type = V8ClassIndex::EVENT;
+
+  if (event->isUIEvent()) {
+    if (event->isKeyboardEvent())
+      type = V8ClassIndex::KEYBOARDEVENT;
+    else if (event->isTextEvent())
+      type = V8ClassIndex::TEXTEVENT;
+    else if (event->isMouseEvent())
+      type = V8ClassIndex::MOUSEEVENT;
+    else if (event->isWheelEvent())
+      type = V8ClassIndex::WHEELEVENT;
+#if ENABLE(SVG)
+    else if (event->isSVGZoomEvent())
+      type = V8ClassIndex::SVGZOOMEVENT;
+#endif
+    else
+      type = V8ClassIndex::UIEVENT;
+  } else if (event->isMutationEvent())
+    type = V8ClassIndex::MUTATIONEVENT;
+  else if (event->isOverflowEvent())
+    type = V8ClassIndex::OVERFLOWEVENT;
+  else if (event->isMessageEvent())
+    type = V8ClassIndex::MESSAGEEVENT;
+  else if (event->isProgressEvent()) {
+    if (event->isXMLHttpRequestProgressEvent())
+      type = V8ClassIndex::XMLHTTPREQUESTPROGRESSEVENT;
+    else
+      type = V8ClassIndex::PROGRESSEVENT;
+  } else if (event->isWebKitAnimationEvent())
+    type = V8ClassIndex::WEBKITANIMATIONEVENT;
+  else if (event->isWebKitTransitionEvent())
+    type = V8ClassIndex::WEBKITTRANSITIONEVENT;
+
+
+  v8::Handle<v8::Object> result =
+      InstantiateV8Object(type, V8ClassIndex::EVENT, event);
+  if (result.IsEmpty()) {
+    // Instantiation failed. Avoid updating the DOM object map and
+    // return null which is already handled by callers of this function
+    // in case the event is NULL.
+    return v8::Null();
+  }
+
+  event->ref();  // fast ref
+  SetJSWrapperForDOMObject(event, v8::Persistent<v8::Object>::New(result));
+
+  return result;
+}
+
+
+// Caller checks node is not null.
+v8::Handle<v8::Value> V8Proxy::NodeToV8Object(Node* node)
+{
+  if (!node) return v8::Null();
+
+  v8::Handle<v8::Object> wrapper = getDOMNodeMap().get(node);
+  if (!wrapper.IsEmpty())
+    return wrapper;
+
+  bool is_document = false;  // document type node has special handling
+  V8ClassIndex::V8WrapperType type;
+
+  switch (node->nodeType()) {
+    case Node::ELEMENT_NODE:
+      if (node->isHTMLElement())
+        type = GetHTMLElementType(static_cast<HTMLElement*>(node));
+#if ENABLE(SVG)
+      else if (node->isSVGElement())
+        type = GetSVGElementType(static_cast<SVGElement*>(node));
+#endif
+      else
+        type = V8ClassIndex::ELEMENT;
+      break;
+    case Node::ATTRIBUTE_NODE:
+      type = V8ClassIndex::ATTR;
+      break;
+    case Node::TEXT_NODE:
+      type = V8ClassIndex::TEXT;
+      break;
+    case Node::CDATA_SECTION_NODE:
+      type = V8ClassIndex::CDATASECTION;
+      break;
+    case Node::ENTITY_NODE:
+      type = V8ClassIndex::ENTITY;
+      break;
+    case Node::PROCESSING_INSTRUCTION_NODE:
+      type = V8ClassIndex::PROCESSINGINSTRUCTION;
+      break;
+    case Node::COMMENT_NODE:
+      type = V8ClassIndex::COMMENT;
+      break;
+    case Node::DOCUMENT_NODE: {
+      is_document = true;
+      Document* doc = static_cast<Document*>(node);
+      if (doc->isHTMLDocument())
+        type = V8ClassIndex::HTMLDOCUMENT;
+#if ENABLE(SVG)
+      else if (doc->isSVGDocument())
+        type = V8ClassIndex::SVGDOCUMENT;
+#endif
+      else
+        type = V8ClassIndex::DOCUMENT;
+      break;
+    }
+    case Node::DOCUMENT_TYPE_NODE:
+      type = V8ClassIndex::DOCUMENTTYPE;
+      break;
+    case Node::NOTATION_NODE:
+      type = V8ClassIndex::NOTATION;
+      break;
+    case Node::DOCUMENT_FRAGMENT_NODE:
+      type = V8ClassIndex::DOCUMENTFRAGMENT;
+      break;
+    case Node::ENTITY_REFERENCE_NODE:
+      type = V8ClassIndex::ENTITYREFERENCE;
+      break;
+    default:
+      type = V8ClassIndex::NODE;
+  }
+
+  // Find the context to which the node belongs and create the wrapper
+  // in that context.  If the node is not in a document, the current
+  // context is used.
+  v8::Local<v8::Context> context;
+  Document* doc = node->document();
+  if (doc) {
+    context = V8Proxy::GetContext(doc->frame());
+  }
+  if (!context.IsEmpty()) {
+    context->Enter();
+  }
+
+  v8::Local<v8::Object> result =
+      InstantiateV8Object(type, V8ClassIndex::NODE, node);
+
+  // Exit the node's context if it was entered.
+  if (!context.IsEmpty()) {
+    context->Exit();
+  }
+
+  if (result.IsEmpty()) {
+    // If instantiation failed it's important not to add the result
+    // to the DOM node map. Instead we return an empty handle, which
+    // should already be handled by callers of this function in case
+    // the node is NULL.
+    return result;
+  }
+
+  node->ref();
+  SetJSWrapperForDOMNode(node, v8::Persistent<v8::Object>::New(result));
+
+  if (is_document) {
+    Document* doc = static_cast<Document*>(node);
+    V8Proxy* proxy = V8Proxy::retrieve(doc->frame());
+    if (proxy)
+        proxy->UpdateDocumentWrapper(result);
+
+    if (type == V8ClassIndex::HTMLDOCUMENT) {
+      // Create marker object and insert it in two internal fields.
+      // This is used to implement temporary shadowing of
+      // document.all.
+      ASSERT(result->InternalFieldCount() ==
+             V8Custom::kHTMLDocumentInternalFieldCount);
+      v8::Local<v8::Object> marker = v8::Object::New();
+      result->SetInternalField(V8Custom::kHTMLDocumentMarkerIndex, marker);
+      result->SetInternalField(V8Custom::kHTMLDocumentShadowIndex, marker);
+    }
+  }
+
+  return result;
+}
+
+
+// A JS object of type EventTarget can only be the following possible types:
+// 1) EventTargetNode; 2) XMLHttpRequest; 3) MessagePort; 4) SVGElementInstance;
+// 5) XMLHttpRequestUpload 6) Worker
+// check EventTarget.h for new type conversion methods
+v8::Handle<v8::Value> V8Proxy::EventTargetToV8Object(EventTarget* target)
+{
+  if (!target)
+      return v8::Null();
+
+#if ENABLE(SVG)
+  SVGElementInstance* instance = target->toSVGElementInstance();
+  if (instance)
+      return ToV8Object(V8ClassIndex::SVGELEMENTINSTANCE, instance);
+#endif
+
+#if ENABLE(WORKERS)
+  Worker* worker = target->toWorker();
+  if (worker)
+      return ToV8Object(V8ClassIndex::WORKER, worker);
+#endif  // WORKERS
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+  DOMApplicationCache* app_cache = target->toDOMApplicationCache();
+  if (app_cache)
+      return ToV8Object(V8ClassIndex::DOMAPPLICATIONCACHE, app_cache);
+#endif
+
+  Node* node = target->toNode();
+  if (node)
+      return NodeToV8Object(node);
+
+  // XMLHttpRequest is created within its JS counterpart.
+  XMLHttpRequest* xhr = target->toXMLHttpRequest();
+  if (xhr) {
+    v8::Handle<v8::Object> wrapper = getActiveDOMObjectMap().get(xhr);
+    ASSERT(!wrapper.IsEmpty());
+    return wrapper;
+  }
+
+  // MessagePort is created within its JS counterpart
+  MessagePort* port = target->toMessagePort();
+  if (port) {
+    v8::Handle<v8::Object> wrapper = getActiveDOMObjectMap().get(port);
+    ASSERT(!wrapper.IsEmpty());
+    return wrapper;
+  }
+
+  XMLHttpRequestUpload* upload = target->toXMLHttpRequestUpload();
+  if (upload) {
+    v8::Handle<v8::Object> wrapper = getDOMObjectMap().get(upload);
+    ASSERT(!wrapper.IsEmpty());
+    return wrapper;
+  }
+
+  ASSERT(0);
+  return v8::Handle<v8::Value>();
+}
+
+
+v8::Handle<v8::Value> V8Proxy::EventListenerToV8Object(
+    EventListener* listener)
+{
+  if (listener == 0) return v8::Null();
+
+  // TODO(fqian): can a user take a lazy event listener and set to other places?
+  V8AbstractEventListener* v8listener =
+      static_cast<V8AbstractEventListener*>(listener);
+  return v8listener->getListenerObject();
+}
+
+
+v8::Handle<v8::Value> V8Proxy::DOMImplementationToV8Object(
+    DOMImplementation* impl)
+{
+  v8::Handle<v8::Object> result =
+    InstantiateV8Object(V8ClassIndex::DOMIMPLEMENTATION,
+                        V8ClassIndex::DOMIMPLEMENTATION,
+                        impl);
+  if (result.IsEmpty()) {
+    // If the instantiation failed, we ignore it and return null instead
+    // of returning an empty handle.
+    return v8::Null();
+  }
+  return result;
+}
+
+
+v8::Handle<v8::Value> V8Proxy::StyleSheetToV8Object(StyleSheet* sheet)
+{
+  if (!sheet) return v8::Null();
+
+  v8::Handle<v8::Object> wrapper = getDOMObjectMap().get(sheet);
+  if (!wrapper.IsEmpty())
+    return wrapper;
+
+  V8ClassIndex::V8WrapperType type = V8ClassIndex::STYLESHEET;
+  if (sheet->isCSSStyleSheet())
+    type = V8ClassIndex::CSSSTYLESHEET;
+
+  v8::Handle<v8::Object> result =
+      InstantiateV8Object(type, V8ClassIndex::STYLESHEET, sheet);
+  if (!result.IsEmpty()) {
+    // Only update the DOM object map if the result is non-empty.
+    sheet->ref();
+    SetJSWrapperForDOMObject(sheet, v8::Persistent<v8::Object>::New(result));
+  }
+
+  // Add a hidden reference from stylesheet object to its owner node.
+  Node* owner_node = sheet->ownerNode();
+  if (owner_node) {
+    v8::Handle<v8::Object> owner =
+        v8::Handle<v8::Object>::Cast(NodeToV8Object(owner_node));
+    result->SetInternalField(V8Custom::kStyleSheetOwnerNodeIndex, owner);
+  }
+
+  return result;
+}
+
+
+v8::Handle<v8::Value> V8Proxy::CSSValueToV8Object(CSSValue* value)
+{
+  if (!value) return v8::Null();
+
+  v8::Handle<v8::Object> wrapper = getDOMObjectMap().get(value);
+  if (!wrapper.IsEmpty())
+    return wrapper;
+
+  V8ClassIndex::V8WrapperType type;
+
+  if (value->isWebKitCSSTransformValue())
+    type = V8ClassIndex::WEBKITCSSTRANSFORMVALUE;
+  else if (value->isValueList())
+    type = V8ClassIndex::CSSVALUELIST;
+  else if (value->isPrimitiveValue())
+    type = V8ClassIndex::CSSPRIMITIVEVALUE;
+#if ENABLE(SVG)
+  else if (value->isSVGPaint())
+    type = V8ClassIndex::SVGPAINT;
+  else if (value->isSVGColor())
+    type = V8ClassIndex::SVGCOLOR;
+#endif
+  else
+    type = V8ClassIndex::CSSVALUE;
+
+  v8::Handle<v8::Object> result =
+      InstantiateV8Object(type, V8ClassIndex::CSSVALUE, value);
+  if (!result.IsEmpty()) {
+    // Only update the DOM object map if the result is non-empty.
+    value->ref();
+    SetJSWrapperForDOMObject(value, v8::Persistent<v8::Object>::New(result));
+  }
+
+  return result;
+}
+
+
+v8::Handle<v8::Value> V8Proxy::CSSRuleToV8Object(CSSRule* rule)
+{
+    if (!rule) return v8::Null();
+
+    v8::Handle<v8::Object> wrapper = getDOMObjectMap().get(rule);
+    if (!wrapper.IsEmpty())
+        return wrapper;
+
+    V8ClassIndex::V8WrapperType type;
+
+    switch (rule->type()) {
+        case CSSRule::STYLE_RULE:
+            type = V8ClassIndex::CSSSTYLERULE;
+            break;
+        case CSSRule::CHARSET_RULE:
+            type = V8ClassIndex::CSSCHARSETRULE;
+            break;
+        case CSSRule::IMPORT_RULE:
+            type = V8ClassIndex::CSSIMPORTRULE;
+            break;
+        case CSSRule::MEDIA_RULE:
+            type = V8ClassIndex::CSSMEDIARULE;
+            break;
+        case CSSRule::FONT_FACE_RULE:
+            type = V8ClassIndex::CSSFONTFACERULE;
+            break;
+        case CSSRule::PAGE_RULE:
+            type = V8ClassIndex::CSSPAGERULE;
+            break;
+        case CSSRule::VARIABLES_RULE:
+            type = V8ClassIndex::CSSVARIABLESRULE;
+            break;
+        case CSSRule::WEBKIT_KEYFRAME_RULE:
+            type = V8ClassIndex::WEBKITCSSKEYFRAMERULE;
+            break;
+        case CSSRule::WEBKIT_KEYFRAMES_RULE:
+            type = V8ClassIndex::WEBKITCSSKEYFRAMESRULE;
+            break;
+        default:  // CSSRule::UNKNOWN_RULE
+            type = V8ClassIndex::CSSRULE;
+            break;
+    }
+
+    v8::Handle<v8::Object> result =
+        InstantiateV8Object(type, V8ClassIndex::CSSRULE, rule);
+    if (!result.IsEmpty()) {
+        // Only update the DOM object map if the result is non-empty.
+        rule->ref();
+        SetJSWrapperForDOMObject(rule, v8::Persistent<v8::Object>::New(result));
+    }
+    return result;
+}
+
+v8::Handle<v8::Value> V8Proxy::WindowToV8Object(DOMWindow* window)
+{
+    if (!window) return v8::Null();
+    // Initializes environment of a frame, and return the global object
+    // of the frame.
+    Frame* frame = window->frame();
+    if (!frame)
+        return v8::Handle<v8::Object>();
+
+    // Special case: Because of evaluateInNewContext() one DOMWindow can have
+    // multipe contexts and multiple global objects associated with it. When
+    // code running in one of those contexts accesses the window object, we
+    // want to return the global object associated with that context, not
+    // necessarily the first global object associated with that DOMWindow.
+    v8::Handle<v8::Context> current_context = v8::Context::GetCurrent();
+    v8::Handle<v8::Object> current_global = current_context->Global();
+    v8::Handle<v8::Object> windowWrapper =
+        LookupDOMWrapper(V8ClassIndex::DOMWINDOW, current_global);
+    if (!windowWrapper.IsEmpty())
+        if (DOMWrapperToNative<DOMWindow>(windowWrapper) == window)
+            return current_global;
+
+    // Otherwise, return the global object associated with this frame.
+    v8::Handle<v8::Context> context = GetContext(frame);
+    if (context.IsEmpty())
+        return v8::Handle<v8::Object>();
+
+    v8::Handle<v8::Object> global = context->Global();
+    ASSERT(!global.IsEmpty());
+    return global;
+}
+
+void V8Proxy::BindJSObjectToWindow(Frame* frame,
+                                   const char* name,
+                                   int type,
+                                   v8::Handle<v8::FunctionTemplate> desc,
+                                   void* imp)
+{
+    // Get environment.
+    v8::Handle<v8::Context> context = V8Proxy::GetContext(frame);
+    if (context.IsEmpty())
+        return;  // JS not enabled.
+
+    v8::Context::Scope scope(context);
+    v8::Handle<v8::Object> instance = desc->GetFunction();
+    SetDOMWrapper(instance, type, imp);
+
+    v8::Handle<v8::Object> global = context->Global();
+    global->Set(v8::String::New(name), instance);
+}
+
+void V8Proxy::ProcessConsoleMessages()
+{
+    ConsoleMessageManager::ProcessDelayedMessages();
+}
+
+
+// Create the utility context for holding JavaScript functions used internally
+// which are not visible to JavaScript executing on the page.
+void V8Proxy::CreateUtilityContext() {
+    ASSERT(m_utilityContext.IsEmpty());
+
+    v8::HandleScope scope;
+    v8::Handle<v8::ObjectTemplate> global_template = v8::ObjectTemplate::New();
+    m_utilityContext = v8::Context::New(NULL, global_template);
+    v8::Context::Scope context_scope(m_utilityContext);
+
+    // Compile JavaScript function for retrieving the source line of the top
+    // JavaScript stack frame.
+    static const char* frame_source_line_source =
+        "function frame_source_line(exec_state) {"
+        "  return exec_state.frame(0).sourceLine();"
+        "}";
+    v8::Script::Compile(v8::String::New(frame_source_line_source))->Run();
+
+    // Compile JavaScript function for retrieving the source name of the top
+    // JavaScript stack frame.
+    static const char* frame_source_name_source =
+        "function frame_source_name(exec_state) {"
+        "  var frame = exec_state.frame(0);"
+        "  if (frame.func().resolved() && "
+        "      frame.func().script() && "
+        "      frame.func().script().name()) {"
+        "    return frame.func().script().name();"
+        "  }"
+        "}";
+    v8::Script::Compile(v8::String::New(frame_source_name_source))->Run();
+}
+
+
+int V8Proxy::GetSourceLineNumber() {
+#if PLATFORM(ANDROID) 
+    return 0;
+#else    
+    v8::HandleScope scope;
+    v8::Handle<v8::Context> utility_context = V8Proxy::GetUtilityContext();
+    if (utility_context.IsEmpty()) {
+        return 0;
+    }
+    v8::Context::Scope context_scope(utility_context);
+    v8::Handle<v8::Function> frame_source_line;
+    frame_source_line = v8::Local<v8::Function>::Cast(
+        utility_context->Global()->Get(v8::String::New("frame_source_line")));
+    if (frame_source_line.IsEmpty()) {
+        return 0;
+    }
+    v8::Handle<v8::Value> result = v8::Debug::Call(frame_source_line);
+    if (result.IsEmpty()) {
+        return 0;
+    }
+    return result->Int32Value();
+#endif
+}
+
+
+String V8Proxy::GetSourceName() {
+#if PLATFORM(ANDROID)
+    return String();
+#else
+    v8::HandleScope scope;
+    v8::Handle<v8::Context> utility_context = GetUtilityContext();
+    if (utility_context.IsEmpty()) {
+        return String();
+    }
+    v8::Context::Scope context_scope(utility_context);
+    v8::Handle<v8::Function> frame_source_name;
+    frame_source_name = v8::Local<v8::Function>::Cast(
+        utility_context->Global()->Get(v8::String::New("frame_source_name")));
+    if (frame_source_name.IsEmpty()) {
+        return String();
+    }
+    return ToWebCoreString(v8::Debug::Call(frame_source_name));
+#endif
+}
+
+void V8Proxy::RegisterExtension(v8::Extension* extension,
+                                const String& schemeRestriction) {
+    v8::RegisterExtension(extension);
+    V8ExtensionInfo info = {schemeRestriction, extension};
+    m_extensions.append(info);
+}
+
+}  // namespace WebCore
diff --git a/V8Binding/binding/v8_proxy.h b/V8Binding/binding/v8_proxy.h
new file mode 100644
index 0000000..17a2d1b
--- /dev/null
+++ b/V8Binding/binding/v8_proxy.h
@@ -0,0 +1,645 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_PROXY_H__
+#define V8_PROXY_H__
+
+#include <v8.h>
+#include "v8_index.h"
+#include "v8_custom.h"
+#include "V8Utilities.h"
+#include "Node.h"
+#include "NodeFilter.h"
+#include "PlatformString.h"  // for WebCore::String
+#include "ScriptSourceCode.h"  // for WebCore::ScriptSourceCode
+#include "SecurityOrigin.h"  // for WebCore::SecurityOrigin
+#include "V8DOMMap.h"
+#include <wtf/Assertions.h>
+#include <wtf/PassRefPtr.h> // so generated bindings don't have to
+#include <wtf/Vector.h>
+
+#if defined(ENABLE_DOM_STATS_COUNTERS) && PLATFORM(CHROMIUM)
+#include "ChromiumBridge.h"
+#define INC_STATS(name) ChromiumBridge::incrementStatsCounter(name)
+#else
+#define INC_STATS(name)
+#endif
+
+// FIXME: Remove the following hack when we replace all references to GetDOMObjectMap.
+#define GetDOMObjectMap getDOMObjectMap
+
+namespace WebCore {
+
+class CSSStyleDeclaration;
+class DOMImplementation;
+class Element;
+class Event;
+class EventListener;
+class Frame;
+class HTMLCollection;
+class HTMLOptionsCollection;
+class HTMLElement;
+class HTMLDocument;
+class MediaList;
+class NamedNodeMap;
+class Node;
+class NodeList;
+class Screen;
+class String;
+class StyleSheet;
+class SVGElement;
+class DOMWindow;
+class Document;
+class EventTarget;
+class Event;
+class EventListener;
+class Navigator;
+class MimeType;
+class MimeTypeArray;
+class Plugin;
+class PluginArray;
+class StyleSheetList;
+class CSSValue;
+class CSSRule;
+class CSSRuleList;
+class CSSValueList;
+class NodeFilter;
+class ScriptExecutionContext;
+
+#if ENABLE(SVG)
+class SVGElementInstance;
+#endif
+
+class V8EventListener;
+class V8ObjectEventListener;
+
+// This is a container for V8EventListener objects that also does some
+// caching to speed up finding entries by v8::Object.
+class V8EventListenerList {
+ public:
+  static const size_t kMaxKeyNameLength = 254;
+  // The name should be distinct from any other V8EventListenerList
+  // within the same process, and <= kMaxKeyNameLength characters.
+  explicit V8EventListenerList(const char* name);
+  ~V8EventListenerList();
+
+  typedef Vector<V8EventListener*>::iterator iterator;
+  V8EventListenerList::iterator begin();
+  iterator end();
+
+  // In addition to adding the listener to this list, this also caches the
+  // V8EventListener as a hidden property on its wrapped v8 listener object,
+  // so we can quickly look it up later.
+  void add(V8EventListener*);
+  void remove(V8EventListener*);
+  V8EventListener* find(v8::Local<v8::Object>, bool isInline);
+  void clear();
+
+ private:
+   v8::Handle<v8::String> getKey(bool isInline);
+   v8::Persistent<v8::String> m_inlineKey;
+   v8::Persistent<v8::String> m_nonInlineKey;
+   Vector<V8EventListener*> m_list;
+};
+
+
+// TODO(fqian): use standard logging facilities in WebCore.
+void log_info(Frame* frame, const String& msg, const String& url);
+
+
+#ifndef NDEBUG
+
+#define GlobalHandleTypeList(V) \
+  V(PROXY)                      \
+  V(NPOBJECT)                   \
+  V(SCHEDULED_ACTION)           \
+  V(EVENT_LISTENER)             \
+  V(NODE_FILTER)                \
+  V(SCRIPTINSTANCE)             \
+  V(SCRIPTVALUE)
+
+
+// Host information of persistent handles.
+enum GlobalHandleType {
+#define ENUM(name) name,
+  GlobalHandleTypeList(ENUM)
+#undef ENUM
+};
+
+
+class GlobalHandleInfo {
+ public:
+  GlobalHandleInfo(void* host, GlobalHandleType type)
+      : host_(host), type_(type) { }
+  void* host_;
+  GlobalHandleType type_;
+};
+
+#endif  // NDEBUG
+
+// The following Batch structs and methods are used for setting multiple
+// properties on an ObjectTemplate, used from the generated bindings
+// initialization (ConfigureXXXTemplate).  This greatly reduces the binary
+// size by moving from code driven setup to data table driven setup.
+
+// BatchedAttribute translates into calls to SetAccessor() on either the
+// instance or the prototype ObjectTemplate, based on |on_proto|.
+struct BatchedAttribute {
+  const char* const name;
+  v8::AccessorGetter getter;
+  v8::AccessorSetter setter;
+  V8ClassIndex::V8WrapperType data;
+  v8::AccessControl settings;
+  v8::PropertyAttribute attribute;
+  bool on_proto;
+};
+
+void BatchConfigureAttributes(v8::Handle<v8::ObjectTemplate> inst,
+                              v8::Handle<v8::ObjectTemplate> proto,
+                              const BatchedAttribute* attrs,
+                              size_t num_attrs);
+
+// BatchedConstant translates into calls to Set() for setting up an object's
+// constants.  It sets the constant on both the FunctionTemplate |desc| and the
+// ObjectTemplate |proto|.  PropertyAttributes is always ReadOnly.
+struct BatchedConstant {
+  const char* const name;
+  int value;
+};
+
+void BatchConfigureConstants(v8::Handle<v8::FunctionTemplate> desc,
+                             v8::Handle<v8::ObjectTemplate> proto,
+                             const BatchedConstant* consts,
+                             size_t num_consts);
+
+const int kMaxRecursionDepth = 20;
+
+// Information about an extension that is registered for use with V8. If scheme
+// is non-empty, it contains the URL scheme the extension should be used with.
+// Otherwise, the extension is used with all schemes.
+struct V8ExtensionInfo {
+  String scheme;
+  v8::Extension* extension;
+};
+typedef WTF::Vector<V8ExtensionInfo> V8ExtensionList;
+
+class V8Proxy {
+ public:
+  // The types of javascript errors that can be thrown.
+  enum ErrorType {
+    RANGE_ERROR,
+    REFERENCE_ERROR,
+    SYNTAX_ERROR,
+    TYPE_ERROR,
+    GENERAL_ERROR
+  };
+
+  explicit V8Proxy(Frame* frame)
+      : m_frame(frame), m_event_listeners("m_event_listeners"),
+        m_xhr_listeners("m_xhr_listeners"), m_inlineCode(false),
+        m_timerCallback(false), m_recursion(0) { }
+
+  ~V8Proxy();
+
+  Frame* frame() { return m_frame; }
+
+  // Clear page-specific data, but keep the global object identify.
+  void clearForNavigation();
+
+  // Clear page-specific data before shutting down the proxy object.
+  void clearForClose();
+
+  // Update document object of the frame.
+  void updateDocument();
+
+  // Update the security origin of a document
+  // (e.g., after setting docoument.domain).
+  void updateSecurityOrigin();
+
+  // Destroy the global object.
+  void DestroyGlobal();
+
+  // TODO(mpcomplete): Need comment.  User Gesture related.
+  bool inlineCode() const { return m_inlineCode; }
+  void setInlineCode(bool value) { m_inlineCode = value; }
+
+  bool timerCallback() const { return m_timerCallback; }
+  void setTimerCallback(bool value) { m_timerCallback = value; }
+
+  // Has the context for this proxy been initialized?
+  bool ContextInitialized();
+
+  // Disconnects the proxy from its owner frame,
+  // and clears all timeouts on the DOM window.
+  void disconnectFrame();
+
+  bool isEnabled();
+
+  // Find/Create/Remove event listener wrappers.
+  PassRefPtr<V8EventListener> FindV8EventListener(v8::Local<v8::Value> listener,
+                                       bool html);
+  PassRefPtr<V8EventListener> FindOrCreateV8EventListener(v8::Local<v8::Value> listener,
+                                               bool html);
+
+  PassRefPtr<V8EventListener> FindObjectEventListener(v8::Local<v8::Value> listener,
+                                        bool html);
+  PassRefPtr<V8EventListener> FindOrCreateObjectEventListener(v8::Local<v8::Value> listener,
+                                                bool html);
+
+  void RemoveV8EventListener(V8EventListener* listener);
+  void RemoveObjectEventListener(V8ObjectEventListener* listener);
+
+  // Protect/Unprotect JS wrappers of a DOM object.
+  static void GCProtect(void* dom_object);
+  static void GCUnprotect(void* dom_object);
+
+  // Create a lazy event listener.
+  PassRefPtr<EventListener> createInlineEventListener(
+      const String& functionName, const String& code, Node* node);
+#if ENABLE(SVG)
+  PassRefPtr<EventListener> createSVGEventHandler(
+      const String& functionName, const String& code, Node* node);
+
+  static void SetSVGContext(void* object, SVGElement* context);
+  static SVGElement* GetSVGContext(void* object);
+#endif
+
+  void setEventHandlerLineno(int lineno) { m_handlerLineno = lineno; }
+  void finishedWithEvent(Event* event) { }
+
+  // Evaluate JavaScript in a new context. The script gets its own global scope
+  // and its own prototypes for intrinsic JavaScript objects (String, Array,
+  // and so-on). It shares the wrappers for all DOM nodes and DOM constructors.
+  void evaluateInNewContext(const Vector<ScriptSourceCode>& sources);
+
+  // Evaluate a script file in the current execution environment.
+  // The caller must hold an execution context.
+  // If cannot evalute the script, it returns an error.
+  v8::Local<v8::Value> evaluate(const ScriptSourceCode& source,
+                                Node* node);
+
+  // Run an already compiled script.
+  v8::Local<v8::Value> RunScript(v8::Handle<v8::Script> script,
+                                 bool inline_code);
+
+  // Call the function with the given receiver and arguments.
+  v8::Local<v8::Value> CallFunction(v8::Handle<v8::Function> function,
+                                    v8::Handle<v8::Object> receiver,
+                                    int argc,
+                                    v8::Handle<v8::Value> argv[]);
+
+  // Returns the dom constructor function for the given node type.
+  v8::Local<v8::Function> GetConstructor(V8ClassIndex::V8WrapperType type);
+
+  // To create JS Wrapper objects, we create a cache of a 'boiler plate'
+  // object, and then simply Clone that object each time we need a new one.
+  // This is faster than going through the full object creation process.
+  v8::Local<v8::Object> CreateWrapperFromCache(V8ClassIndex::V8WrapperType type);
+
+  // Returns the window object of the currently executing context.
+  static DOMWindow* retrieveWindow();
+  // Returns the window object associated with a context.
+  static DOMWindow* retrieveWindow(v8::Handle<v8::Context> context);
+  // Returns V8Proxy object of the currently executing context.
+  static V8Proxy* retrieve();
+  // Returns V8Proxy object associated with a frame.
+  static V8Proxy* retrieve(Frame* frame);
+  // Returns V8Proxy object associated with a script execution context.
+  static V8Proxy* retrieve(ScriptExecutionContext* context);
+
+  // Returns the frame object of the window object associated
+  // with the currently executing context.
+  static Frame* retrieveFrame();
+  // Returns the frame object of the window object associated with
+  // a context.
+  static Frame* retrieveFrame(v8::Handle<v8::Context> context);
+  // Returns the frame that started JS execution.
+  // NOTE: cannot declare retrieveActiveFrame as inline function,
+  // VS complains at linking time.
+  static Frame* retrieveActiveFrame();
+
+  // Returns V8 Context of a frame. If none exists, creates
+  // a new context.  It is potentially slow and consumes memory.
+  static v8::Local<v8::Context> GetContext(Frame* frame);
+  static v8::Local<v8::Context> GetCurrentContext();
+
+  // If the current context causes out of memory, JavaScript setting
+  // is disabled and it returns true.
+  static bool HandleOutOfMemory();
+
+  // Check if the active execution context can access the target frame.
+  static bool CanAccessFrame(Frame* target, bool report_error);
+
+  // Check if it is safe to access the given node from the
+  // current security context.
+  static bool CheckNodeSecurity(Node* node);
+
+  static v8::Handle<v8::Value> CheckNewLegal(const v8::Arguments& args);
+
+  // Create a V8 wrapper for a C pointer
+  static v8::Handle<v8::Value> WrapCPointer(void* cptr) {
+    // Represent void* as int
+    int addr = reinterpret_cast<int>(cptr);
+    ASSERT((addr & 0x01) == 0);  // the address must be aligned.
+    return v8::Integer::New(addr >> 1);
+  }
+
+  // Take C pointer out of a v8 wrapper
+  template <class C>
+  static C* ExtractCPointer(v8::Handle<v8::Value> obj) {
+    return static_cast<C*>(ExtractCPointerImpl(obj));
+  }
+
+  static v8::Handle<v8::Script> CompileScript(v8::Handle<v8::String> code,
+                                              const String& fileName,
+                                              int baseLine);
+
+#ifndef NDEBUG
+  // Checks if a v8 value can be a DOM wrapper
+  static bool MaybeDOMWrapper(v8::Handle<v8::Value> value);
+#endif
+
+  // Sets contents of a DOM wrapper.
+  static void SetDOMWrapper(v8::Handle<v8::Object> obj, int type, void* ptr);
+
+  static v8::Handle<v8::Object> LookupDOMWrapper(
+    V8ClassIndex::V8WrapperType type, v8::Handle<v8::Value> value);
+
+  // A helper function extract native object pointer from a DOM wrapper
+  // and cast to the specified type.
+  template <class C>
+  static C* DOMWrapperToNative(v8::Handle<v8::Value> object) {
+    ASSERT(MaybeDOMWrapper(object));
+    v8::Handle<v8::Value> ptr =
+      v8::Handle<v8::Object>::Cast(object)->GetInternalField(
+          V8Custom::kDOMWrapperObjectIndex);
+    return ExtractCPointer<C>(ptr);
+  }
+
+  // A help function extract a node type pointer from a DOM wrapper.
+  // Wrapped pointer must be cast to Node* first.
+  template <class C>
+  static C* DOMWrapperToNode(v8::Handle<v8::Value> value) {
+    ASSERT(MaybeDOMWrapper(value));
+
+    v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(value);
+
+    ASSERT(GetDOMWrapperType(object) == V8ClassIndex::NODE);
+
+    v8::Handle<v8::Value> wrapper =
+       object->GetInternalField(V8Custom::kDOMWrapperObjectIndex);
+    return static_cast<C*>(ExtractCPointer<Node>(wrapper));
+  }
+
+  template<typename T>
+  static v8::Handle<v8::Value> ToV8Object(V8ClassIndex::V8WrapperType type, PassRefPtr<T> imp)
+  {
+    return ToV8Object(type, imp.get());
+  }
+  static v8::Handle<v8::Value> ToV8Object(V8ClassIndex::V8WrapperType type,
+                                          void* imp);
+  // Fast-path for Node objects.
+  static v8::Handle<v8::Value> NodeToV8Object(Node* node);
+
+  template <class C>
+  static C* ToNativeObject(V8ClassIndex::V8WrapperType type,
+                           v8::Handle<v8::Value> object) {
+    return static_cast<C*>(ToNativeObjectImpl(type, object));
+  }
+
+  static V8ClassIndex::V8WrapperType GetDOMWrapperType(
+      v8::Handle<v8::Object> object);
+
+  // If the exception code is different from zero, a DOM exception is
+  // schedule to be thrown.
+  static void SetDOMException(int exception_code);
+
+  // Schedule an error object to be thrown.
+  static v8::Handle<v8::Value> ThrowError(ErrorType type, const char* message);
+
+  // Create an instance of a function descriptor and set to the global object
+  // as a named property. Used by v8_test_shell.
+  static void BindJSObjectToWindow(Frame* frame,
+                                   const char* name,
+                                   int type,
+                                   v8::Handle<v8::FunctionTemplate> desc,
+                                   void* imp);
+
+  static v8::Handle<v8::Value> EventToV8Object(Event* event);
+  static Event* ToNativeEvent(v8::Handle<v8::Value> jsevent) {
+    if (!IsDOMEventWrapper(jsevent)) return 0;
+    return DOMWrapperToNative<Event>(jsevent);
+  }
+
+  static v8::Handle<v8::Value> EventTargetToV8Object(EventTarget* target);
+  // Wrap and unwrap JS event listeners
+  static v8::Handle<v8::Value> EventListenerToV8Object(EventListener* target);
+
+  // DOMImplementation is a singleton and it is handled in a special
+  // way.  A wrapper is generated per document and stored in an
+  // internal field of the document.
+  static v8::Handle<v8::Value> DOMImplementationToV8Object(
+      DOMImplementation* impl);
+
+  // Wrap JS node filter in C++
+  static PassRefPtr<NodeFilter> ToNativeNodeFilter(v8::Handle<v8::Value> filter);
+
+  static v8::Persistent<v8::FunctionTemplate> GetTemplate(
+      V8ClassIndex::V8WrapperType type);
+
+  template <int tag, typename T>
+    static v8::Handle<v8::Value> ConstructDOMObject(const v8::Arguments& args);
+
+  // Checks whether a DOM object has a JS wrapper.
+  static bool DOMObjectHasJSWrapper(void* obj);
+  // Set JS wrapper of a DOM object, the caller in charge of increase ref.
+  static void SetJSWrapperForDOMObject(void* obj,
+                                       v8::Persistent<v8::Object> wrapper);
+  static void SetJSWrapperForActiveDOMObject(void* obj,
+                                             v8::Persistent<v8::Object> wrapper);
+  static void SetJSWrapperForDOMNode(Node* node,
+                                     v8::Persistent<v8::Object> wrapper);
+
+  // Process any pending JavaScript console messages.
+  static void ProcessConsoleMessages();
+
+#ifndef NDEBUG
+  // For debugging and leak detection purpose
+  static void RegisterGlobalHandle(GlobalHandleType type,
+                                   void* host,
+                                   v8::Persistent<v8::Value> handle);
+  static void UnregisterGlobalHandle(void* host,
+                                     v8::Persistent<v8::Value> handle);
+#endif
+
+  // Check whether a V8 value is a wrapper of type |classType|.
+  static bool IsWrapperOfType(v8::Handle<v8::Value> obj,
+                              V8ClassIndex::V8WrapperType classType);
+
+  // Function for retrieving the line number and source name for the top
+  // JavaScript stack frame.
+  static int GetSourceLineNumber();
+  static String GetSourceName();
+
+
+  // Returns a local handle of the context.
+  v8::Local<v8::Context> GetContext() {
+    return v8::Local<v8::Context>::New(m_context);
+  }
+
+  // Registers an extension to be available on webpages with a particular scheme
+  // If the scheme argument is empty, the extension is available on all pages.
+  // Will only affect v8 contexts initialized after this call. Takes ownership
+  // of the v8::Extension object passed.
+  static void RegisterExtension(v8::Extension* extension,
+                                const String& schemeRestriction);
+
+ private:
+  v8::Persistent<v8::Context> createNewContext(v8::Handle<v8::Object> global);
+  void InitContextIfNeeded();
+  void DisconnectEventListeners();
+  void SetSecurityToken();
+  void ClearDocumentWrapper();
+  void UpdateDocumentWrapper(v8::Handle<v8::Value> wrapper);
+  // Dispose global handles of m_contexts and friends.
+  void DisposeContextHandles();
+
+  static bool CanAccessPrivate(DOMWindow* target);
+
+  // Check whether a V8 value is a DOM Event wrapper
+  static bool IsDOMEventWrapper(v8::Handle<v8::Value> obj);
+
+  static void* ToNativeObjectImpl(V8ClassIndex::V8WrapperType type,
+                                  v8::Handle<v8::Value> object);
+
+  // Take C pointer out of a v8 wrapper
+  static void* ExtractCPointerImpl(v8::Handle<v8::Value> obj) {
+    ASSERT(obj->IsNumber());
+    int addr = obj->Int32Value();
+    return reinterpret_cast<void*>(addr << 1);
+  }
+
+
+  static v8::Handle<v8::Value> StyleSheetToV8Object(StyleSheet* sheet);
+  static v8::Handle<v8::Value> CSSValueToV8Object(CSSValue* value);
+  static v8::Handle<v8::Value> CSSRuleToV8Object(CSSRule* rule);
+  // Returns the JS wrapper of a window object, initializes the environment
+  // of the window frame if needed.
+  static v8::Handle<v8::Value> WindowToV8Object(DOMWindow* window);
+
+#if ENABLE(SVG)
+  static v8::Handle<v8::Value> SVGElementInstanceToV8Object(
+      SVGElementInstance* instance);
+  static v8::Handle<v8::Value> SVGObjectWithContextToV8Object(
+      V8ClassIndex::V8WrapperType type, void* object);
+#endif
+
+  // Set hidden references in a DOMWindow object of a frame.
+  static void SetHiddenWindowReference(Frame* frame,
+                                       const int internal_index,
+                                       v8::Handle<v8::Object> jsobj);
+
+  static V8ClassIndex::V8WrapperType GetHTMLElementType(HTMLElement* elm);
+
+  // The first parameter, desc_type, specifies the function descriptor
+  // used to create JS object. The second parameter, cptr_type, specifies
+  // the type of third parameter, impl, for type casting.
+  // For example, a HTML element has HTMLELEMENT desc_type, but always
+  // use NODE as cptr_type. JS wrapper stores cptr_type and impl as
+  // internal fields.
+  static v8::Local<v8::Object> InstantiateV8Object(
+      V8ClassIndex::V8WrapperType desc_type,
+      V8ClassIndex::V8WrapperType cptr_type,
+      void* impl);
+
+  static const char* GetRangeExceptionName(int exception_code);
+  static const char* GetEventExceptionName(int exception_code);
+  static const char* GetXMLHttpRequestExceptionName(int exception_code);
+  static const char* GetDOMExceptionName(int exception_code);
+
+#if ENABLE(XPATH)
+  static const char* GetXPathExceptionName(int exception_code);
+#endif
+
+#if ENABLE(SVG)
+  static V8ClassIndex::V8WrapperType GetSVGElementType(SVGElement* elm);
+  static const char* GetSVGExceptionName(int exception_code);
+#endif
+
+  // Create and populate the utility context.
+  static void CreateUtilityContext();
+
+  // Returns a local handle of the utility context.
+  static v8::Local<v8::Context> GetUtilityContext() {
+    if (m_utilityContext.IsEmpty()) {
+      CreateUtilityContext();
+    }
+    return v8::Local<v8::Context>::New(m_utilityContext);
+  }
+
+  Frame* m_frame;
+
+  v8::Persistent<v8::Context> m_context;
+  // For each possible type of wrapper, we keep a boilerplate object.
+  // The boilerplate is used to create additional wrappers of the same type.
+  // We keep a single persistent handle to an array of the activated
+  // boilerplates.
+  v8::Persistent<v8::Array> m_wrapper_boilerplates;
+  v8::Persistent<v8::Value> m_object_prototype;
+
+  v8::Persistent<v8::Object> m_global;
+  v8::Persistent<v8::Value> m_document;
+
+  // Utility context holding JavaScript functions used internally.
+  static v8::Persistent<v8::Context> m_utilityContext;
+
+  int m_handlerLineno;
+
+  // A list of event listeners created for this frame,
+  // the list gets cleared when removing all timeouts.
+  V8EventListenerList m_event_listeners;
+
+  // A list of event listeners create for XMLHttpRequest object for this frame,
+  // the list gets cleared when removing all timeouts.
+  V8EventListenerList m_xhr_listeners;
+
+  // True for <a href="javascript:foo()"> and false for <script>foo()</script>.
+  // Only valid during execution.
+  bool m_inlineCode;
+
+  // True when executing from within a timer callback.  Only valid during
+  // execution.
+  bool m_timerCallback;
+
+  // Track the recursion depth to be able to avoid too deep recursion. The V8
+  // engine allows much more recursion than KJS does so we need to guard against
+  // excessive recursion in the binding layer.
+  int m_recursion;
+
+  // List of extensions registered with the context.
+  static V8ExtensionList m_extensions;
+};
+
+template <int tag, typename T>
+v8::Handle<v8::Value> V8Proxy::ConstructDOMObject(const v8::Arguments& args) {
+  if (!args.IsConstructCall()) {
+    V8Proxy::ThrowError(V8Proxy::TYPE_ERROR,
+        "DOM object constructor cannot be called as a function.");
+    return v8::Undefined();
+  }
+
+
+  // Note: it's OK to let this RefPtr go out of scope because we also call
+  // SetDOMWrapper(), which effectively holds a reference to obj.
+  RefPtr<T> obj = T::create();
+  V8Proxy::SetDOMWrapper(args.Holder(), tag, obj.get());
+  obj->ref();
+  V8Proxy::SetJSWrapperForDOMObject(
+      obj.get(), v8::Persistent<v8::Object>::New(args.Holder()));
+  return args.Holder();
+}
+
+}  // namespace WebCore
+
+#endif  // V8_PROXY_H__