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diff --git a/WebCore/bindings/v8/custom/V8AbstractWorkerCustom.cpp b/WebCore/bindings/v8/custom/V8AbstractWorkerCustom.cpp
new file mode 100644
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+++ b/WebCore/bindings/v8/custom/V8AbstractWorkerCustom.cpp
@@ -0,0 +1,139 @@
+/*
+ * 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 "AbstractWorker.h"
+
+#include "ExceptionCode.h"
+#include "ScriptExecutionContext.h"
+#include "V8Binding.h"
+#include "V8CustomBinding.h"
+#include "V8ObjectEventListener.h"
+#include "V8Proxy.h"
+#include "V8Utilities.h"
+#include "WorkerContextExecutionProxy.h"
+
+namespace WebCore {
+
+PassRefPtr<EventListener> getEventListener(AbstractWorker* worker, v8::Local<v8::Value> value, bool isAttribute, bool findOnly)
+{
+    if (worker->scriptExecutionContext()->isWorkerContext()) {
+        WorkerContextExecutionProxy* workerContextProxy = WorkerContextExecutionProxy::retrieve();
+        ASSERT(workerContextProxy);
+        return workerContextProxy->findOrCreateObjectEventListener(value, isAttribute, findOnly);
+    }
+
+    V8Proxy* proxy = V8Proxy::retrieve(worker->scriptExecutionContext());
+    if (proxy) {
+        V8EventListenerList* list = proxy->objectListeners();
+        return findOnly ? list->findWrapper(value, isAttribute) : list->findOrCreateWrapper<V8ObjectEventListener>(proxy->frame(), value, isAttribute);
+    }
+
+    return 0;
+}
+
+ACCESSOR_GETTER(AbstractWorkerOnerror)
+{
+    INC_STATS(L"DOM.AbstractWorker.onerror._get");
+    AbstractWorker* worker = V8DOMWrapper::convertToNativeObject<AbstractWorker>(V8ClassIndex::ABSTRACTWORKER, info.Holder());
+    if (worker->onerror()) {
+        V8ObjectEventListener* listener = static_cast<V8ObjectEventListener*>(worker->onerror());
+        v8::Local<v8::Object> v8Listener = listener->getListenerObject();
+        return v8Listener;
+    }
+    return v8::Undefined();
+}
+
+ACCESSOR_SETTER(AbstractWorkerOnerror)
+{
+    INC_STATS(L"DOM.AbstractWorker.onerror._set");
+    AbstractWorker* worker = V8DOMWrapper::convertToNativeObject<AbstractWorker>(V8ClassIndex::ABSTRACTWORKER, info.Holder());
+    V8ObjectEventListener* oldListener = static_cast<V8ObjectEventListener*>(worker->onerror());
+    if (value->IsNull()) {
+        if (oldListener) {
+            v8::Local<v8::Object> oldV8Listener = oldListener->getListenerObject();
+            removeHiddenDependency(info.Holder(), oldV8Listener, V8Custom::kAbstractWorkerRequestCacheIndex);
+        }
+
+        // Clear the listener.
+        worker->setOnerror(0);
+    } else {
+        RefPtr<EventListener> listener = getEventListener(worker, value, true, false);
+        if (listener) {
+            if (oldListener) {
+                v8::Local<v8::Object> oldV8Listener = oldListener->getListenerObject();
+                removeHiddenDependency(info.Holder(), oldV8Listener, V8Custom::kAbstractWorkerRequestCacheIndex);
+            }
+
+            worker->setOnerror(listener);
+            createHiddenDependency(info.Holder(), value, V8Custom::kAbstractWorkerRequestCacheIndex);
+        }
+    }
+}
+
+CALLBACK_FUNC_DECL(AbstractWorkerAddEventListener)
+{
+    INC_STATS(L"DOM.AbstractWorker.addEventListener()");
+    AbstractWorker* worker = V8DOMWrapper::convertToNativeObject<AbstractWorker>(V8ClassIndex::ABSTRACTWORKER, args.Holder());
+
+    RefPtr<EventListener> listener = getEventListener(worker, args[1], false, false);
+    if (listener) {
+        String type = toWebCoreString(args[0]);
+        bool useCapture = args[2]->BooleanValue();
+        worker->addEventListener(type, listener, useCapture);
+
+        createHiddenDependency(args.Holder(), args[1], V8Custom::kAbstractWorkerRequestCacheIndex);
+    }
+    return v8::Undefined();
+}
+
+CALLBACK_FUNC_DECL(AbstractWorkerRemoveEventListener)
+{
+    INC_STATS(L"DOM.AbstractWorker.removeEventListener()");
+    AbstractWorker* worker = V8DOMWrapper::convertToNativeObject<AbstractWorker>(V8ClassIndex::ABSTRACTWORKER, args.Holder());
+
+    RefPtr<EventListener> listener = getEventListener(worker, args[1], false, true);
+    if (listener) {
+        String type = toWebCoreString(args[0]);
+        bool useCapture = args[2]->BooleanValue();
+        worker->removeEventListener(type, listener.get(), useCapture);
+
+        removeHiddenDependency(args.Holder(), args[1], V8Custom::kAbstractWorkerRequestCacheIndex);
+    }
+
+    return v8::Undefined();
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(WORKERS)