Browser Plugin: Add HTML5-like postMessage support

content/renderer/browser_plugin/browser_plugin.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_H_
 #define  CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_
 
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPlugin.h"
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 29 matching lines @@
   // its damage buffer.
   void UpdateRect(int message_id,
                   const BrowserPluginMsg_UpdateRect_Params& params);
   // Inform the BrowserPlugin that its guest has crashed.
   void GuestCrashed();
   // Informs the BrowserPlugin that the guest has navigated to a new URL.
   void DidNavigate(const GURL& url);
   // Tells the BrowserPlugin to advance the focus to the next (or previous)
   // element.
   void AdvanceFocus(bool reverse);
+  // Tell the BrowserPlugin to post a message to its guest.
+  void PostMessage(const string16& message,
+                   const string16& target_origin);
+  // Inform the BrowserPlugin of a message posted from its guest.
+  void ReceiveMessage(int source_routing_id,
+                      const string16& source_origin,
+                      const string16& data);
 
   // Indicates whether there are any Javascript listeners attached to a
   // provided event_name.
   bool HasListeners(const std::string& event_name);
   // Add a custom event listener to this BrowserPlugin instance.
   bool AddEventListener(const std::string& event_name,
                         v8::Local<v8::Function> function);
   // Remove a custom event listener from this BrowserPlugin instance.
   bool RemoveEventListener(const std::string& event_name,
                         v8::Local<v8::Function> function);
@@ skipping 88 matching lines @@
   EventListenerMap event_listener_map_;
 #if defined(OS_WIN)
   base::SharedMemory shared_memory_;
 #endif
   DISALLOW_COPY_AND_ASSIGN(BrowserPlugin);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_