Make BrowserMessageFilter not derive from IPC::ChannelProxy::MessageFilter. This allows us to hide …

content/browser/plugin_process_host.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_BROWSER_PLUGIN_PROCESS_HOST_H_
 #define CONTENT_BROWSER_PLUGIN_PROCESS_HOST_H_
 
 #include "build/build_config.h"
 
 #include <list>
@@ skipping 102 matching lines @@
   void OnAppActivation();
 #endif
 
   const WebPluginInfo& info() const { return info_; }
 
 #if defined(OS_WIN)
   // Tracks plugin parent windows created on the browser UI thread.
   void AddWindow(HWND window);
 #endif
 
-  // Adds an IPC message filter.  A reference will be kept to the filter.
-  void AddFilter(IPC::ChannelProxy::MessageFilter* filter);
-
  private:
   // Sends a message to the plugin process to request creation of a new channel
   // for the given mime type.
   void RequestPluginChannel(Client* client);
 
   // Message handlers.
   void OnChannelCreated(const IPC::ChannelHandle& channel_handle);
   void OnChannelDestroyed(int renderer_id);
 
 #if defined(OS_WIN)
@@ skipping 62 matching lines @@
     : public BrowserChildProcessHostTypeIterator<PluginProcessHost> {
  public:
   PluginProcessHostIterator()
       : BrowserChildProcessHostTypeIterator<PluginProcessHost>(
           PROCESS_TYPE_PLUGIN) {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_PLUGIN_PROCESS_HOST_H_