Standardize usage of virtual/override/final in content/renderer/

content/renderer/devtools/devtools_agent.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_RENDERER_DEVTOOLS_DEVTOOLS_AGENT_H_
 #define CONTENT_RENDERER_DEVTOOLS_DEVTOOLS_AGENT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 16 matching lines @@
 
 // DevToolsAgent belongs to the inspectable RenderView and provides Glue's
 // agents with the communication capabilities. All messages from/to Glue's
 // agents infrastructure are flowing through this communication agent.
 // There is a corresponding DevToolsClient object on the client side.
 class DevToolsAgent : public RenderViewObserver,
                       public base::SupportsWeakPtr<DevToolsAgent>,
                       public blink::WebDevToolsAgentClient {
  public:
   explicit DevToolsAgent(RenderViewImpl* render_view);
-  virtual ~DevToolsAgent();
+  ~DevToolsAgent() override;
 
   // Returns agent instance for its routing id.
   static DevToolsAgent* FromRoutingId(int routing_id);
 
   blink::WebDevToolsAgent* GetWebAgent();
 
   bool IsAttached();
 
  private:
   // RenderView::Observer implementation.
-  virtual bool OnMessageReceived(const IPC::Message& message) override;
+  bool OnMessageReceived(const IPC::Message& message) override;
 
   // WebDevToolsAgentClient implementation
   virtual void sendMessageToInspectorFrontend(const blink::WebString& data);
 
   virtual long processId() override;
   virtual int debuggerId() override;
   virtual void saveAgentRuntimeState(const blink::WebString& state) override;
   virtual blink::WebDevToolsAgentClient::WebKitClientMessageLoop*
       createClientMessageLoop() override;
   virtual void willEnterDebugLoop() override;
@@ skipping 46 matching lines @@
   bool paused_in_mouse_move_;
 
   static base::subtle::AtomicWord /* TraceEventCallback */ event_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsAgent);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_DEVTOOLS_DEVTOOLS_AGENT_H_