Standardize usage of virtual/override/final in chrome/browser/extensions/

chrome/browser/extensions/suspicious_extension_bubble_controller.h

 // Copyright (c) 2013 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_EXTENSIONS_SUSPICIOUS_EXTENSION_BUBBLE_CONTROLLER_H_
 #define CHROME_BROWSER_EXTENSIONS_SUSPICIOUS_EXTENSION_BUBBLE_CONTROLLER_H_
 
 #include "chrome/browser/extensions/extension_message_bubble_controller.h"
 
 class Profile;
 
 namespace extensions {
 
 class SuspiciousExtensionBubble;
 
 class SuspiciousExtensionBubbleController
     : public extensions::ExtensionMessageBubbleController {
  public:
   // Clears the list of profiles the bubble has been shown for. Should only be
   // used during testing.
   static void ClearProfileListForTesting();
 
   explicit SuspiciousExtensionBubbleController(Profile* profile);
-  virtual ~SuspiciousExtensionBubbleController();
+  ~SuspiciousExtensionBubbleController() override;
 
   // Whether the controller knows of extensions to list in the bubble. Returns
   // true if so.
   bool ShouldShow();
 
   // ExtensionMessageBubbleController methods.
-  virtual void Show(ExtensionMessageBubble* bubble) override;
+  void Show(ExtensionMessageBubble* bubble) override;
 
  private:
   // A weak pointer to the profile we are associated with. Not owned by us.
   Profile* profile_;
 
   DISALLOW_COPY_AND_ASSIGN(SuspiciousExtensionBubbleController);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_SUSPICIOUS_EXTENSION_BUBBLE_CONTROLLER_H_