Standardize usage of virtual/override/final specifiers.

ash/shelf/shelf_widget.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 ASH_SHELF_SHELF_WIDGET_H_
 #define ASH_SHELF_SHELF_WIDGET_H_
 
 #include "ash/ash_export.h"
 #include "ash/shelf/background_animator.h"
 #include "ash/shelf/shelf_layout_manager_observer.h"
@@ skipping 12 matching lines @@
 class StatusAreaWidget;
 class WorkspaceController;
 
 class ASH_EXPORT ShelfWidget : public views::Widget,
                                public views::WidgetObserver,
                                public ShelfLayoutManagerObserver {
  public:
   ShelfWidget(aura::Window* shelf_container,
               aura::Window* status_container,
               WorkspaceController* workspace_controller);
-  virtual ~ShelfWidget();
+  ~ShelfWidget() override;
 
   // Returns if shelf alignment option is enabled, and the user is able
   // to adjust the alignment (guest and supervised mode users cannot for
   // example).
   static bool ShelfAlignmentAllowed();
 
   void SetAlignment(ShelfAlignment alignmnet);
   ShelfAlignment GetAlignment() const;
 
   // Sets the shelf's background type.
@@ skipping 30 matching lines @@
 
   aura::Window* window_container() { return window_container_; }
 
   // TODO(harrym): Remove when Status Area Widget is a child view.
   void ShutdownStatusAreaWidget();
 
   // Force the shelf to be presented in an undimmed state.
   void ForceUndimming(bool force);
 
   // Overridden from views::WidgetObserver:
-  virtual void OnWidgetActivationChanged(
-      views::Widget* widget, bool active) override;
+  void OnWidgetActivationChanged(views::Widget* widget, bool active) override;
 
   // A function to test the current alpha used by the dimming bar. If there is
   // no dimmer active, the function will return -1.
   int GetDimmingAlphaForTest();
 
   // A function to test the bounds of the dimming bar. Returns gfx::Rect() if
   // the dimmer is inactive.
   gfx::Rect GetDimmerBoundsForTest();
 
   // Disable dimming animations for running tests.
   void DisableDimmingAnimationsForTest();
 
   // ShelfLayoutManagerObserver overrides:
-  virtual void WillDeleteShelf() override;
+  void WillDeleteShelf() override;
 
  private:
   class DelegateView;
 
   ShelfLayoutManager* shelf_layout_manager_;
   scoped_ptr<Shelf> shelf_;
   StatusAreaWidget* status_area_widget_;
 
   // delegate_view_ is attached to window_container_ and is cleaned up
   // during CloseChildWindows of the associated RootWindowController.
   DelegateView* delegate_view_;
   BackgroundAnimator background_animator_;
   bool activating_as_fallback_;
   aura::Window* window_container_;
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELF_SHELF_WIDGET_H_