Standardize usage of virtual/override/final specifiers.

chrome/browser/ui/views/toolbar/toolbar_button.h

 // Copyright 2013 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_VIEWS_TOOLBAR_TOOLBAR_BUTTON_H_
 #define CHROME_BROWSER_UI_VIEWS_TOOLBAR_TOOLBAR_BUTTON_H_
 
 #include "ui/views/context_menu_controller.h"
 #include "ui/views/controls/button/button.h"
 #include "ui/views/controls/button/label_button.h"
 
 namespace ui {
 class MenuModel;
 }
 
 namespace views {
 class MenuRunner;
 }
 
 // This class provides basic drawing and mouse-over behavior for buttons
 // appearing in the toolbar.
 class ToolbarButton : public views::LabelButton,
                       public views::ContextMenuController {
  public:
   // Takes ownership of the |model|, which can be null if no menu
   // is to be shown.
   ToolbarButton(views::ButtonListener* listener, ui::MenuModel* model);
-  virtual ~ToolbarButton();
+  ~ToolbarButton() override;
 
   // Set up basic mouseover border behavior.
   // Should be called before first paint.
   void Init();
 
   // Methods for handling ButtonDropDown-style menus.
   void ClearPendingMenu();
   bool IsMenuShowing() const;
 
   // views::LabelButton:
-  virtual gfx::Size GetPreferredSize() const override;
-  virtual bool OnMousePressed(const ui::MouseEvent& event) override;
-  virtual bool OnMouseDragged(const ui::MouseEvent& event) override;
-  virtual void OnMouseReleased(const ui::MouseEvent& event) override;
+  gfx::Size GetPreferredSize() const override;
+  bool OnMousePressed(const ui::MouseEvent& event) override;
+  bool OnMouseDragged(const ui::MouseEvent& event) override;
+  void OnMouseReleased(const ui::MouseEvent& event) override;
   // Showing the drop down results in a MouseCaptureLost, we need to ignore it.
-  virtual void OnMouseCaptureLost() override;
-  virtual void OnMouseExited(const ui::MouseEvent& event) override;
-  virtual void OnGestureEvent(ui::GestureEvent* event) override;
-  virtual void GetAccessibleState(ui::AXViewState* state) override;
-  virtual scoped_ptr<views::LabelButtonBorder> CreateDefaultBorder() const
-      override;
+  void OnMouseCaptureLost() override;
+  void OnMouseExited(const ui::MouseEvent& event) override;
+  void OnGestureEvent(ui::GestureEvent* event) override;
+  void GetAccessibleState(ui::AXViewState* state) override;
+  scoped_ptr<views::LabelButtonBorder> CreateDefaultBorder() const override;
 
   // views::ContextMenuController:
-  virtual void ShowContextMenuForView(View* source,
-                                      const gfx::Point& point,
-                                      ui::MenuSourceType source_type) override;
+  void ShowContextMenuForView(View* source,
+                              const gfx::Point& point,
+                              ui::MenuSourceType source_type) override;
 
  protected:
   // Overridden from CustomButton. Returns true if the button should become
   // pressed when a user holds the mouse down over the button. For this
   // implementation, both left and right mouse buttons can trigger a change
   // to the PUSHED state.
-  virtual bool ShouldEnterPushedState(const ui::Event& event) override;
+  bool ShouldEnterPushedState(const ui::Event& event) override;
 
   // Returns if menu should be shown. Override this to change default behavior.
   virtual bool ShouldShowMenu();
 
   // Function to show the dropdown menu.
   virtual void ShowDropDownMenu(ui::MenuSourceType source_type);
 
  private:
   // The model that populates the attached menu.
   scoped_ptr<ui::MenuModel> model_;
 
   // Indicates if menu is currently showing.
   bool menu_showing_;
 
   // Y position of mouse when left mouse button is pressed
   int y_position_on_lbuttondown_;
 
   // Menu runner to display drop down menu.
   scoped_ptr<views::MenuRunner> menu_runner_;
 
   // A factory for tasks that show the dropdown context menu for the button.
   base::WeakPtrFactory<ToolbarButton> show_menu_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ToolbarButton);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TOOLBAR_TOOLBAR_BUTTON_H_