Browser Plugin: Reduce code repetition in BrowserPluginManager.

content/renderer/browser_plugin/mock_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_MOCK_BROWSER_PLUGIN_H_
 #define CONTENT_RENDERER_BROWSER_PLUGIN_MOCK_BROWSER_PLUGIN_H_
 
 #include "content/renderer/browser_plugin/browser_plugin.h"
 
 namespace content {
 
 class MockBrowserPlugin : public BrowserPlugin {
  public:
   MockBrowserPlugin(
       int id,
       RenderViewImpl* render_view,
       WebKit::WebFrame* frame,
       const WebKit::WebPluginParams& params);
 
   virtual ~MockBrowserPlugin();
 
+  // Takes ownership of message.
+  bool ReceiveMessage(IPC::Message* message);
+
   virtual TransportDIB* CreateTransportDIB(const size_t size) OVERRIDE;
   virtual void FreeDamageBuffer(TransportDIB** damage_buffer) OVERRIDE;
 
   // Allow poking at a few private members.
   using BrowserPlugin::guest_crashed_;
   using BrowserPlugin::pending_damage_buffer_;
 
  private:
   int transport_dib_next_sequence_number_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_BROWSER_PLUGIN_MOCK_BROWSER_PLUGIN_H_