Standardize usage of virtual/override/final specifiers.

chrome/browser/ui/views/panels/x11_panel_resizer.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 CHROME_BROWSER_UI_VIEWS_PANELS_X11_PANEL_RESIZER_H_
 #define CHROME_BROWSER_UI_VIEWS_PANELS_X11_PANEL_RESIZER_H_
 
 #include "ui/events/event_handler.h"
 #include "ui/gfx/point.h"
 
 namespace aura {
 class Window;
 }
 
 class Panel;
 
 // EventHandler which implements special handling for resizing panels. Panels
 // should use X11PanelResizer instead of X11WindowEventFilter.
 // When resizing a panel:
 // - The panel bounds should update in sync with the user's mouse movement
 //   during the resize operation.
 // - The layout of all of the panels should be updated once the resize operation
 //   completes.
 // X11PanelResizer does not hand off resizing to the window manager because it
 // is not possible to determine when the window manager has finished resizing.
 class X11PanelResizer : public ui::EventHandler {
  public:
   X11PanelResizer(Panel* panel, aura::Window* window);
-  virtual ~X11PanelResizer();
+  ~X11PanelResizer() override;
 
  private:
   enum ResizeState {
     NOT_RESIZING,
 
     // The user has clicked on one of the panel's edges.
     RESIZE_CAN_START,
 
     // The user has dragged one of the panel's edges far enough for resizing to
     // begin.
     RESIZE_IN_PROGRESS
   };
 
   // Called as a result of ET_MOUSE_PRESSED.
   void OnMousePressed(ui::MouseEvent* event);
 
   // Called as a result of ET_MOUSE_DRAGGED.
   void OnMouseDragged(ui::MouseEvent* event);
 
   // Stops the resize operation if one is in progress. Consumes |event| if it
   // is not NULL and the resize operation was stopped.
   void StopResizing(ui::MouseEvent* event, bool canceled);
 
   // ui::EventHandler:
-  virtual void OnMouseEvent(ui::MouseEvent* event) override;
+  void OnMouseEvent(ui::MouseEvent* event) override;
 
   // The panel being resized.
   Panel* panel_;
 
   // |panel|'s window.
   aura::Window* window_;
 
   ResizeState resize_state_;
 
   // The edge that the user is resizing.
   int resize_component_;
 
   // The location of the mouse click on the window border.
   gfx::Point initial_press_location_in_screen_;
 
   DISALLOW_COPY_AND_ASSIGN(X11PanelResizer);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_PANELS_X11_PANEL_RESIZER_H_