Standardize usage of virtual/override/final specifiers.

ui/views/controls/menu/menu_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 UI_VIEWS_CONTROLS_MENU_MENU_CONTROLLER_H_
 #define UI_VIEWS_CONTROLS_MENU_MENU_CONTROLLER_H_
 
 #include "build/build_config.h"
 
 #include <list>
@@ skipping 146 matching lines @@
   void OnDragWillStart();
 
   // Called by the Widget when the drag has completed. |should_close|
   // corresponds to whether or not the menu should close.
   void OnDragComplete(bool should_close);
 
   // Update the submenu's selection based on the current mouse location
   void UpdateSubmenuSelection(SubmenuView* source);
 
   // WidgetObserver overrides:
-  virtual void OnWidgetDestroying(Widget* widget) override;
+  void OnWidgetDestroying(Widget* widget) override;
 
   // Only used for testing.
   bool IsCancelAllTimerRunningForTest();
 
   // Only used for testing.
   static void TurnOffMenuSelectionHoldForTest();
 
  private:
   friend class internal::MenuEventDispatcher;
   friend class internal::MenuMessagePumpDispatcher;
@@ skipping 113 matching lines @@
   // In other words, if this returns false (which happens if escape was
   // pressed, or a matching mnemonic was found) the message loop returns.
   bool OnKeyDown(ui::KeyboardCode key_code);
 
   // Creates a MenuController. If |blocking| is true a nested message loop is
   // started in |Run|.
   MenuController(ui::NativeTheme* theme,
                  bool blocking,
                  internal::MenuControllerDelegate* delegate);
 
-  virtual ~MenuController();
+  ~MenuController() override;
 
   // Runs the platform specific bits of the message loop. If |nested_menu| is
   // true we're being asked to run a menu from within a menu (eg a context
   // menu).
   void RunMessageLoop(bool nested_menu);
 
   // AcceleratorPressed is invoked on the hot tracked view if it exists.
   SendAcceleratorResultType SendAcceleratorToHotTrackedView();
 
   void UpdateInitialLocation(const gfx::Rect& bounds,
@@ skipping 320 matching lines @@
   bool item_selected_by_touch_;
 
   scoped_ptr<MenuMessageLoop> message_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(MenuController);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_MENU_MENU_CONTROLLER_H_