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

chrome/browser/ui/webui/signin/login_ui_service.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 CHROME_BROWSER_UI_WEBUI_SIGNIN_LOGIN_UI_SERVICE_H_
 #define CHROME_BROWSER_UI_WEBUI_SIGNIN_LOGIN_UI_SERVICE_H_
 
 #include "base/basictypes.h"
 #include "base/observer_list.h"
 #include "base/strings/string16.h"
@@ skipping 37 matching lines @@
     virtual void OnSyncConfirmationUIClosed(bool configure_sync_first) {}
 
     // Called when a confirmation UI for untrusted signin is shown.
     virtual void OnUntrustedLoginUIShown() {}
 
    protected:
     virtual ~Observer() {}
   };
 
   explicit LoginUIService(Profile* profile);
-  virtual ~LoginUIService();
+  ~LoginUIService() override;
 
   // Gets the currently active login UI, or null if no login UI is active.
   LoginUI* current_login_ui() const {
     return ui_;
   }
 
   // |observer| The observer to add or remove; cannot be NULL.
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
@@ skipping 29 matching lines @@
 
   // List of observers.
   ObserverList<Observer> observer_list_;
 
   base::string16 last_login_result_;
 
   DISALLOW_COPY_AND_ASSIGN(LoginUIService);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_SIGNIN_LOGIN_UI_SERVICE_H_