Standardize usage of virtual/override/final specifiers.

ui/views/corewm/tooltip_aura.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 UI_VIEWS_COREWM_TOOLTIP_AURA_H_
 #define UI_VIEWS_COREWM_TOOLTIP_AURA_H_
 
 #include "ui/gfx/screen_type_delegate.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/corewm/tooltip.h"
 #include "ui/views/widget/widget_observer.h"
 
 namespace gfx {
 class FontList;
 }  // namespace gfx
 
 namespace views {
 
 class Widget;
 
 namespace corewm {
 
 // Implementation of Tooltip that shows the tooltip using a Widget and Label.
 class VIEWS_EXPORT TooltipAura : public Tooltip, public WidgetObserver {
  public:
   explicit TooltipAura(gfx::ScreenType screen_type);
-  virtual ~TooltipAura();
+  ~TooltipAura() override;
 
   // Trims the tooltip to fit in the width |max_width|, setting |text| to the
   // clipped result, |width| to the width (in pixels) of the clipped text
   // and |line_count| to the number of lines of text in the tooltip. |font_list|
   // is used to layout |text|. |max_width| comes from GetMaxWidth().
   static void TrimTooltipToFit(const gfx::FontList& font_list,
                                int max_width,
                                base::string16* text,
                                int* width,
                                int* line_count);
 
  private:
   // Returns the max width of the tooltip when shown at the specified location.
   int GetMaxWidth(const gfx::Point& location) const;
 
   // Adjusts the bounds given by the arguments to fit inside the desktop
   // and applies the adjusted bounds to the label_.
   void SetTooltipBounds(const gfx::Point& mouse_pos,
                         const gfx::Size& tooltip_size);
 
   // Destroys |widget_|.
   void DestroyWidget();
 
   // Tooltip:
-  virtual void SetText(aura::Window* window,
-                       const base::string16& tooltip_text,
-                       const gfx::Point& location) override;
-  virtual void Show() override;
-  virtual void Hide() override;
-  virtual bool IsVisible() override;
+  void SetText(aura::Window* window,
+               const base::string16& tooltip_text,
+               const gfx::Point& location) override;
+  void Show() override;
+  void Hide() override;
+  bool IsVisible() override;
 
   // WidgetObserver:
-  virtual void OnWidgetDestroying(Widget* widget) override;
+  void OnWidgetDestroying(Widget* widget) override;
 
   const gfx::ScreenType screen_type_;
 
   // The label showing the tooltip.
   Label label_;
 
   // The widget containing the tooltip. May be NULL.
   Widget* widget_;
 
   // The window we're showing the tooltip for. Never NULL and valid while
   // showing.
   aura::Window* tooltip_window_;
 
   DISALLOW_COPY_AND_ASSIGN(TooltipAura);
 };
 
 }  // namespace corewm
 }  // namespace views
 
 #endif  // UI_VIEWS_COREWM_TOOLTIP_AURA_H_