Make IPC::Channel::Listener:OnMessageReceived have a return value indicating ...

chrome/common/socket_stream_dispatcher.h

 // Copyright (c) 2009 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 CHROME_COMMON_SOCKET_STREAM_DISPATCHER_H_
 #define CHROME_COMMON_SOCKET_STREAM_DISPATCHER_H_
 #pragma once
 
 #include <vector>
 
 #include "base/basictypes.h"
-
-namespace IPC {
-class Message;
-}
+#include "ipc/ipc_channel.h"
 
 namespace WebKit {
 class WebSocketStreamHandle;
 }
 
 namespace webkit_glue {
 class WebSocketStreamHandleBridge;
 class WebSocketStreamHandleDelegate;
 }
 
 // Dispatches socket stream related messages sent to a child process from the
 // main browser process.  There is one instance per child process.  Messages
 // are dispatched on the main child thread.  The RenderThread class
 // creates an instance of SocketStreamDispatcher and delegates calls to it.
-class SocketStreamDispatcher {
+class SocketStreamDispatcher : public IPC::Channel::Listener {
  public:
   SocketStreamDispatcher();
   ~SocketStreamDispatcher() {}
 
   static webkit_glue::WebSocketStreamHandleBridge* CreateBridge(
       WebKit::WebSocketStreamHandle* handle,
       webkit_glue::WebSocketStreamHandleDelegate* delegate);
+
+  // IPC::Channel::Listener implementation.
   bool OnMessageReceived(const IPC::Message& msg);
 
  private:
   void OnConnected(int socket_id, int max_amount_send_allowed);
   void OnSentData(int socket_id, int amount_sent);
   void OnReceivedData(int socket_id, const std::vector<char>& data);
   void OnClosed(int socket_id);
 
   DISALLOW_COPY_AND_ASSIGN(SocketStreamDispatcher);
 };
 
 #endif  // CHROME_COMMON_SOCKET_STREAM_DISPATCHER_H_