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

chrome/renderer/devtools_client.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_RENDERER_DEVTOOLS_CLIENT_H_
 #define CHROME_RENDERER_DEVTOOLS_CLIENT_H_
 #pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/scoped_ptr.h"
+#include "ipc/ipc_channel.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebDevToolsFrontendClient.h"
 
-namespace IPC {
-class Message;
-}
 class MessageLoop;
 class RenderView;
 
 namespace WebKit {
 class WebDevToolsFrontend;
 class WebString;
 }
 
 struct DevToolsMessageData;
 
 // Developer tools UI end of communication channel between the render process of
 // the page being inspected and tools UI renderer process. All messages will
 // go through browser process. On the side of the inspected page there's
 // corresponding DevToolsAgent object.
 // TODO(yurys): now the client is almost empty later it will delegate calls to
 // code in glue
-class DevToolsClient : public WebKit::WebDevToolsFrontendClient {
+class DevToolsClient : public WebKit::WebDevToolsFrontendClient,
+                       public IPC::Channel::Listener {
  public:
   explicit DevToolsClient(RenderView* view);
   virtual ~DevToolsClient();
 
-  // Called to possibly handle the incoming IPC message. Returns true if
-  // handled. Called in render thread.
+  // IPC::Channel::Listener implementation.
   bool OnMessageReceived(const IPC::Message& message);
 
   // WebDevToolsFrontendClient implementation
   virtual void sendFrontendLoaded();
   virtual void sendMessageToBackend(const WebKit::WebString&);
   virtual void sendDebuggerCommandToAgent(const WebKit::WebString& command);
 
   virtual void activateWindow();
   virtual void closeWindow();
   virtual void requestDockWindow();
   virtual void requestUndockWindow();
 
   virtual bool shouldHideScriptsPanel();
 
  private:
   void OnDispatchOnInspectorFrontend(const std::string& message);
 
   // Sends message to DevToolsAgent.
   void Send(const IPC::Message& tools_agent_message);
 
   RenderView* render_view_;  // host render view
   scoped_ptr<WebKit::WebDevToolsFrontend> web_tools_frontend_;
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsClient);
 };
 
 #endif  // CHROME_RENDERER_DEVTOOLS_CLIENT_H_