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

chrome/browser/ppapi_plugin_process_host.h

 // Copyright (c) 2010 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_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_
 #define CHROME_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "chrome/browser/browser_child_process_host.h"
 
 class RenderMessageFilter;
 
 class PpapiPluginProcessHost : public BrowserChildProcessHost {
  public:
   explicit PpapiPluginProcessHost(RenderMessageFilter* filter);
   virtual ~PpapiPluginProcessHost();
 
   void Init(const FilePath& path, IPC::Message* reply_msg);
 
  private:
   virtual bool CanShutdown();
   virtual void OnProcessLaunched();
 
-  virtual void OnMessageReceived(const IPC::Message& msg);
+  virtual bool OnMessageReceived(const IPC::Message& msg);
   virtual void OnChannelConnected(int32 peer_pid);
   virtual void OnChannelError();
 
   // IPC message handlers.
   void OnPluginLoaded(const IPC::ChannelHandle& handle);
 
   // Sends the reply_msg_ to the renderer with the given channel info.
   void ReplyToRenderer(base::ProcessHandle plugin_handle,
                        const IPC::ChannelHandle& channel_handle);
 
   RenderMessageFilter* filter_;
 
   // Path to the plugin library.
   FilePath plugin_path_;
 
   // When we're waiting for initialization of the plugin, this contains the
   // reply message for the renderer to tell it that it can continue.
   scoped_ptr<IPC::Message> reply_msg_;
 
   DISALLOW_COPY_AND_ASSIGN(PpapiPluginProcessHost);
 };
 
 #endif  // CHROME_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_