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

content/renderer/dom_automation_controller.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_DOM_AUTOMATION_CONTROLLER_H_
 #define CONTENT_RENDERER_DOM_AUTOMATION_CONTROLLER_H_
 
 #include "base/basictypes.h"
 #include "content/public/renderer/render_frame_observer.h"
 #include "gin/wrappable.h"
@@ skipping 89 matching lines @@
   // The value should be properly formed JSON.
   bool SendJSON(const std::string& json);
 
   // Sends a string with a provided Automation Id.
   bool SendWithId(int automation_id, const std::string& str);
 
   bool SetAutomationId(int automation_id);
 
  private:
   explicit DomAutomationController(RenderFrame* render_view);
-  virtual ~DomAutomationController();
+  ~DomAutomationController() override;
 
   // gin::WrappableBase
-  virtual gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
+  gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
       v8::Isolate* isolate) override;
 
   // RenderViewObserver
-  virtual void OnDestruct() override;
+  void OnDestruct() override;
 
   int automation_id_;  // routing id to be used by the next channel.
 
   DISALLOW_COPY_AND_ASSIGN(DomAutomationController);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_DOM_AUTOMATION_CONTROLLER_H_