Add OVERRIDE to content/.

content/renderer/devtools_agent.h

 // Copyright (c) 2011 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_DEVTOOLS_AGENT_H_
 #define CONTENT_RENDERER_DEVTOOLS_AGENT_H_
 #pragma once
 
 #include <string>
 
@@ skipping 21 matching lines @@
   static DevToolsAgent* FromHostId(int host_id);
 
   WebKit::WebDevToolsAgent* GetWebAgent();
 
   bool IsAttached();
 
  private:
   friend class DevToolsAgentFilter;
 
   // RenderView::Observer implementation.
-  virtual bool OnMessageReceived(const IPC::Message& message);
+  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // WebDevToolsAgentClient implementation
   virtual void sendMessageToInspectorFrontend(const WebKit::WebString& data);
   virtual void sendDebuggerOutput(const WebKit::WebString& data);
 
   virtual int hostIdentifier();
   virtual void saveAgentRuntimeState(const WebKit::WebString& state);
   virtual WebKit::WebDevToolsAgentClient::WebKitClientMessageLoop*
       createClientMessageLoop();
   virtual bool exposeV8DebuggerProtocol();
@@ skipping 10 matching lines @@
   void OnNavigate();
   void OnSetupDevToolsClient();
 
   bool is_attached_;
   bool expose_v8_debugger_protocol_;
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsAgent);
 };
 
 #endif  // CONTENT_RENDERER_DEVTOOLS_AGENT_H_