Expose the ServiceWorker's v8 context to embedders.

Source/web/WebEmbeddedWorkerImpl.h

 /*
  * 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 19 matching lines @@
 
 #ifndef WebEmbeddedWorkerImpl_h
 #define WebEmbeddedWorkerImpl_h
 
 #include "public/web/WebContentSecurityPolicy.h"
 #include "public/web/WebEmbeddedWorker.h"
 #include "public/web/WebEmbeddedWorkerStartData.h"
 #include "public/web/WebFrameClient.h"
 
 namespace WebCore {
+class ExecutionContextTask;
 class WorkerScriptLoader;
 class WorkerThread;
 }
 
 namespace blink {
 
 class ServiceWorkerGlobalScopeProxy;
 class WebServiceWorkerNetworkProvider;
 class WebView;
 
 class WebEmbeddedWorkerImpl FINAL :
     public WebEmbeddedWorker,
     public WebFrameClient {
     WTF_MAKE_NONCOPYABLE(WebEmbeddedWorkerImpl);
 public:
     WebEmbeddedWorkerImpl(
         PassOwnPtr<WebServiceWorkerContextClient>,
         PassOwnPtr<WebWorkerPermissionClientProxy>);
     virtual ~WebEmbeddedWorkerImpl();
 
+    // Posts the task to the worker thread, where it can safely access the worker's v8 context.
+    void postTask(PassOwnPtr<WebCore::ExecutionContextTask>);
+
     // WebEmbeddedWorker overrides.
     virtual void startWorkerContext(const WebEmbeddedWorkerStartData&) OVERRIDE;
     virtual void resumeAfterDownload() OVERRIDE;
     virtual void terminateWorkerContext() OVERRIDE;
     virtual void resumeWorkerContext() OVERRIDE;
     virtual void attachDevTools() OVERRIDE;
     virtual void reattachDevTools(const WebString& savedState) OVERRIDE;
     virtual void detachDevTools() OVERRIDE;
     virtual void dispatchDevToolsMessage(const WebString&) OVERRIDE;
 
@@ skipping 44 matching lines @@
     enum {
         DontPauseAfterDownload,
         DoPauseAfterDownload,
         IsPausedAfterDownload
     } m_pauseAfterDownloadState;
 };
 
 } // namespace blink
 
 #endif // WebEmbeddedWorkerImpl_h