Introduce WebWorkerPermissionClientProxy to deprecate WorkerAllowMainThreadBridge

public/web/WebSharedWorkerClient.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 19 matching lines @@
 
 #ifndef WebSharedWorkerClient_h
 #define WebSharedWorkerClient_h
 
 #include "../platform/WebMessagePortChannel.h"
 #include "WebCommonWorkerClient.h"
 
 namespace WebKit {
 
 class WebNotificationPresenter;
+class WebSecurityOrigin;
 class WebString;
 class WebWorker;
+class WebWorkerPermissionClientProxy;
 
 // Provides an interface back to the in-page script object for a worker.
 // All functions are expected to be called back on the thread that created
 // the Worker object, unless noted.
 class WebSharedWorkerClient : public WebCommonWorkerClient {
 public:
     virtual void workerContextClosed() = 0;
     virtual void workerContextDestroyed() = 0;
 
     // Returns the notification presenter for this worker context. Pointer
     // is owned by the object implementing WebCommonWorkerClient.
     virtual WebNotificationPresenter* notificationPresenter() = 0;
 
-    // Called on the main webkit thread in the worker process during initialization.
+    // Called on the main webkit thread in the worker process during
+    // initialization.
     virtual WebApplicationCacheHost* createApplicationCacheHost(WebApplicationCacheHostClient*) = 0;
 
+    // Called on the main webkit thread in the worker process during
+    // initialization.
+    // WebWorkerPermissionClientProxy should not retain the given
+    // WebSecurityOrigin, as the proxy instance is passed to worker thread
+    // while WebSecurityOrigin is not thread safe.
+    virtual WebWorkerPermissionClientProxy* createWorkerPermissionClientProxy(const WebSecurityOrigin&) { return 0; }
+
     virtual void dispatchDevToolsMessage(const WebString&) { }
     virtual void saveDevToolsAgentState(const WebString&) { }
 
 protected:
     ~WebSharedWorkerClient() { }
 };
 
 } // namespace WebKit
 
 #endif