Support UseCounter in dedicated workers.

Source/core/workers/WorkerObjectProxy.h

 /*
  * 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
@@ skipping 21 matching lines @@
 #define WorkerObjectProxy_h
 
 #include "core/dom/MessagePort.h"
 #include "core/workers/WorkerReportingProxy.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 
 namespace WebCore {
 
 class ExecutionContext;
+class ExecutionContextTask;
 class WorkerMessagingProxy;
 
 // A proxy to talk to the worker object. This object is created on the
 // worker object thread (i.e. usually the main thread), passed on to
 // the worker thread, and used just to proxy messages to the
 // WorkerMessagingProxy on the worker object thread.
 //
 // Used only by Dedicated Worker.
 class WorkerObjectProxy FINAL : public WorkerReportingProxy {
 public:
     static PassOwnPtr<WorkerObjectProxy> create(ExecutionContext*, WorkerMessagingProxy*);
     virtual ~WorkerObjectProxy() { }
 
     void postMessageToWorkerObject(PassRefPtr<SerializedScriptValue>, PassOwnPtr<MessagePortChannelArray>);
-
+    void postTaskToMainExecutionContext(PassOwnPtr<ExecutionContextTask>);
     void confirmMessageFromWorkerObject(bool hasPendingActivity);
     void reportPendingActivity(bool hasPendingActivity);
 
     // WorkerReportingProxy overrides.
     virtual void reportException(const String& errorMessage, int lineNumber, int columnNumber, const String& sourceURL) OVERRIDE;
     virtual void reportConsoleMessage(MessageSource, MessageLevel, const String& message, int lineNumber, const String& sourceURL) OVERRIDE;
     virtual void postMessageToPageInspector(const String&) OVERRIDE;
     virtual void updateInspectorStateCookie(const String&) OVERRIDE;
     virtual void workerGlobalScopeStarted(WorkerGlobalScope*) OVERRIDE { }
     virtual void workerGlobalScopeClosed() OVERRIDE;
     virtual void workerGlobalScopeDestroyed() OVERRIDE;
     virtual void willDestroyWorkerGlobalScope() OVERRIDE { }
 
 private:
     WorkerObjectProxy(ExecutionContext*, WorkerMessagingProxy*);
 
     // These objects always outlive this proxy.
     ExecutionContext* m_executionContext;
     WorkerMessagingProxy* m_messagingProxy;
 };
 
 } // namespace WebCore
 
 #endif // WorkerObjectProxy_h