Support UseCounter in dedicated workers.

Source/core/workers/WorkerObjectProxy.cpp

 /*
  * Copyright (C) 2013 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
@@ skipping 31 matching lines @@
 PassOwnPtr<WorkerObjectProxy> WorkerObjectProxy::create(ExecutionContext* executionContext, WorkerMessagingProxy* messagingProxy)
 {
     return adoptPtr(new WorkerObjectProxy(executionContext, messagingProxy));
 }
 
 void WorkerObjectProxy::postMessageToWorkerObject(PassRefPtr<SerializedScriptValue> message, PassOwnPtr<MessagePortChannelArray> channels)
 {
     m_executionContext->postTask(bind(&WorkerMessagingProxy::postMessageToWorkerObject, m_messagingProxy, message, channels));
 }
 
+void WorkerObjectProxy::postTaskToMainExecutionContext(PassOwnPtr<ExecutionContextTask> task)
+{
+    m_executionContext->postTask(task);
+}
+
 void WorkerObjectProxy::confirmMessageFromWorkerObject(bool hasPendingActivity)
 {
     m_executionContext->postTask(bind(&WorkerMessagingProxy::confirmMessageFromWorkerObject, m_messagingProxy, hasPendingActivity));
 }
 
 void WorkerObjectProxy::reportPendingActivity(bool hasPendingActivity)
 {
     m_executionContext->postTask(bind(&WorkerMessagingProxy::reportPendingActivity, m_messagingProxy, hasPendingActivity));
 }
 
@@ skipping 28 matching lines @@
     m_executionContext->postTask(bind(&WorkerMessagingProxy::workerGlobalScopeDestroyed, m_messagingProxy));
 }
 
 WorkerObjectProxy::WorkerObjectProxy(ExecutionContext* executionContext, WorkerMessagingProxy* messagingProxy)
     : m_executionContext(executionContext)
     , m_messagingProxy(messagingProxy)
 {
 }
 
 } // namespace WebCore