Browser Plugin: Add HTML5-like postMessage support

content/renderer/browser_plugin/browser_plugin_manager_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_MANAGER_IMPL_H_
 #define CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_MANAGER_IMPL_H_
 
 #include "content/renderer/browser_plugin/browser_plugin_manager.h"
 #include "googleurl/src/gurl.h"
 
@@ skipping 17 matching lines @@
 
   // RenderProcessObserver override. Call on render thread.
   virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE;
  private:
   void OnUpdateRect(int instance_id,
                     int message_id,
                     const BrowserPluginMsg_UpdateRect_Params& params);
   void OnGuestCrashed(int instance_id);
   void OnDidNavigate(int instance_id, const GURL& url);
   void OnAdvanceFocus(int instance_id, bool reverse);
+  void OnReceiveMessage(int instance_id,
+                        int source_routing_id,
+                        const string16& source_origin,
+                        const string16& data);
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginManagerImpl);
 };
 
 }  // namespace content
 
 #endif //  CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_MANAGER_IMPL_H_