Standardize usage of virtual/override/final specifiers.

ui/app_list/views/folder_background_view.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 UI_APP_LIST_VIEWS_FOLDER_BACKGROUND_VIEW_H_
 #define UI_APP_LIST_VIEWS_FOLDER_BACKGROUND_VIEW_H_
 
 #include "ui/compositor/layer_animation_observer.h"
 #include "ui/views/view.h"
 
 namespace app_list {
 
 class AppListFolderView;
 
 // Draws the ink bubble indicating the boundary of the folder when user drags an
 // item inside a folder.
 class FolderBackgroundView : public views::View,
                              public ui::ImplicitAnimationObserver {
  public:
   enum ShowState {
     NO_BUBBLE,
     SHOW_BUBBLE,
     HIDE_BUBBLE,
   };
 
   FolderBackgroundView();
-  virtual ~FolderBackgroundView();
+  ~FolderBackgroundView() override;
 
   // Updates the ink bubble's ShowState.
   void UpdateFolderContainerBubble(ShowState state);
 
   // Returns the radius of the folder container ink bubble.
   int GetFolderContainerBubbleRadius() const;
 
   void set_folder_view(AppListFolderView* folder_view) {
     folder_view_ = folder_view;
   }
 
  private:
   // views::View overrides:
-  virtual void OnPaint(gfx::Canvas* canvas) override;
+  void OnPaint(gfx::Canvas* canvas) override;
 
   // ui::ImplicitAnimationObserver overrides:
-  virtual void OnImplicitAnimationsCompleted() override;
+  void OnImplicitAnimationsCompleted() override;
 
   AppListFolderView* folder_view_;
   ShowState show_state_;
 
   DISALLOW_COPY_AND_ASSIGN(FolderBackgroundView);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_VIEWS_FOLDER_BACKGROUND_VIEW_H_