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diff --git a/WebCore/bridge/Bridge.h b/WebCore/bridge/Bridge.h
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+++ b/WebCore/bridge/Bridge.h
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+/*
+ * Copyright (C) 2003, 2008, 2009 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.
+ *
+ * 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 Bridge_h
+#define Bridge_h
+
+#include <runtime/JSString.h>
+#include <wtf/HashMap.h>
+#include <wtf/RefCounted.h>
+#include <wtf/Vector.h>
+
+namespace JSC  {
+
+class ArgList;
+class Identifier;
+class JSGlobalObject;
+class PropertyNameArray;
+class RuntimeObjectImp;
+
+namespace Bindings {
+
+class Instance;
+class Method;
+class RootObject;
+
+typedef Vector<Method*> MethodList;
+
+class Field {
+public:
+    virtual JSValue valueFromInstance(ExecState*, const Instance*) const = 0;
+    virtual void setValueToInstance(ExecState*, const Instance*, JSValue) const = 0;
+
+    virtual ~Field() { }
+};
+
+class Method : public Noncopyable {
+public:
+    virtual int numParameters() const = 0;
+        
+    virtual ~Method() { }
+};
+
+class Class : public Noncopyable {
+public:
+    virtual MethodList methodsNamed(const Identifier&, Instance*) const = 0;
+    virtual Field* fieldNamed(const Identifier&, Instance*) const = 0;
+    virtual JSValue fallbackObject(ExecState*, Instance*, const Identifier&) { return jsUndefined(); }
+
+    virtual ~Class() { }
+};
+
+typedef void (*KJSDidExecuteFunctionPtr)(ExecState*, JSObject* rootObject);
+
+class Instance : public RefCounted<Instance> {
+public:
+    Instance(PassRefPtr<RootObject>);
+
+    static void setDidExecuteFunction(KJSDidExecuteFunctionPtr func);
+    static KJSDidExecuteFunctionPtr didExecuteFunction();
+
+    // These functions are called before and after the main entry points into
+    // the native implementations.  They can be used to establish and cleanup
+    // any needed state.
+    void begin();
+    void end();
+    
+    virtual Class* getClass() const = 0;
+    RuntimeObjectImp* createRuntimeObject(ExecState*);
+    void willInvalidateRuntimeObject();
+    void willDestroyRuntimeObject();
+    
+    // Returns false if the value was not set successfully.
+    virtual bool setValueOfUndefinedField(ExecState*, const Identifier&, JSValue) { return false; }
+
+    virtual JSValue invokeMethod(ExecState*, const MethodList&, const ArgList& args) = 0;
+
+    virtual bool supportsInvokeDefaultMethod() const { return false; }
+    virtual JSValue invokeDefaultMethod(ExecState*, const ArgList&) { return jsUndefined(); }
+    
+    virtual bool supportsConstruct() const { return false; }
+    virtual JSValue invokeConstruct(ExecState*, const ArgList&) { return JSValue(); }
+    
+    virtual void getPropertyNames(ExecState*, PropertyNameArray&) { }
+
+    virtual JSValue defaultValue(ExecState*, PreferredPrimitiveType) const = 0;
+    
+    virtual JSValue valueOf(ExecState* exec) const = 0;
+    
+    RootObject* rootObject() const;
+    
+    virtual ~Instance();
+
+    virtual bool getOwnPropertySlot(JSObject*, ExecState*, const Identifier&, PropertySlot&) { return false; }
+    virtual bool getOwnPropertyDescriptor(JSObject*, ExecState*, const Identifier&, PropertyDescriptor&) { return false; }
+    virtual void put(JSObject*, ExecState*, const Identifier&, JSValue, PutPropertySlot&) { }
+
+protected:
+    virtual void virtualBegin() { }
+    virtual void virtualEnd() { }
+    virtual RuntimeObjectImp* newRuntimeObject(ExecState*);
+
+    RefPtr<RootObject> _rootObject;
+
+private:
+    RuntimeObjectImp* m_runtimeObject;
+};
+
+class Array : public Noncopyable {
+public:
+    Array(PassRefPtr<RootObject>);
+    virtual ~Array();
+    
+    virtual void setValueAt(ExecState*, unsigned index, JSValue) const = 0;
+    virtual JSValue valueAt(ExecState*, unsigned index) const = 0;
+    virtual unsigned int getLength() const = 0;
+
+protected:
+    RefPtr<RootObject> _rootObject;
+};
+
+const char* signatureForParameters(const ArgList&);
+
+typedef HashMap<RefPtr<UString::Rep>, MethodList*> MethodListMap;
+typedef HashMap<RefPtr<UString::Rep>, Method*> MethodMap; 
+typedef HashMap<RefPtr<UString::Rep>, Field*> FieldMap; 
+    
+} // namespace Bindings
+
+} // namespace JSC
+
+#endif