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

chrome/browser/translate/translate_service.h

 // Copyright 2014 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_TRANSLATE_TRANSLATE_SERVICE_H_
 #define CHROME_BROWSER_TRANSLATE_TRANSLATE_SERVICE_H_
 
 #include "chrome/browser/web_resource/resource_request_allowed_notifier.h"
 
 class GURL;
@@ skipping 34 matching lines @@
   static std::string GetTargetLanguage(PrefService* prefs);
 
   // Returns true if the URL can be translated.
   static bool IsTranslatableURL(const GURL& url);
 
  private:
   TranslateService();
   ~TranslateService();
 
   // ResourceRequestAllowedNotifier::Observer methods.
-  virtual void OnResourceRequestsAllowed() override;
+  void OnResourceRequestsAllowed() override;
 
   // Helper class to know if it's allowed to make network resource requests.
   ResourceRequestAllowedNotifier resource_request_allowed_notifier_;
 };
 
 #endif  // CHROME_BROWSER_TRANSLATE_TRANSLATE_SERVICE_H_