Standardize usage of virtual/override/final specifiers.

ui/views/controls/progress_bar.h

 // Copyright (c) 2011 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_CONTROLS_PROGRESS_BAR_H_
 #define UI_VIEWS_CONTROLS_PROGRESS_BAR_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "ui/views/view.h"
 
 namespace views {
 
 // Progress bar is a control that indicates progress visually.
 class VIEWS_EXPORT ProgressBar : public View {
  public:
   // The value range defaults to [0.0, 1.0].
   ProgressBar();
-  virtual ~ProgressBar();
+  ~ProgressBar() override;
 
   double current_value() const { return current_value_; }
 
   // Gets a normalized current value in [0.0, 1.0] range based on current value
   // range and the min/max display value range.
   double GetNormalizedValue() const;
 
   // Sets the inclusive range of values to be displayed.  Values outside of the
   // range will be capped when displayed.
   void SetDisplayRange(double min_display_value, double max_display_value);
 
   // Sets the current value.  Values outside of the range [min_display_value_,
   // max_display_value_] will be stored unmodified and capped for display.
   void SetValue(double value);
 
   // Sets the tooltip text.  Default behavior for a progress bar is to show no
   // tooltip on mouse hover. Calling this lets you set a custom tooltip.  To
   // revert to default behavior, call this with an empty string.
   void SetTooltipText(const base::string16& tooltip_text);
 
   // Overridden from View:
-  virtual bool GetTooltipText(const gfx::Point& p,
-                              base::string16* tooltip) const override;
-  virtual void GetAccessibleState(ui::AXViewState* state) override;
+  bool GetTooltipText(const gfx::Point& p,
+                      base::string16* tooltip) const override;
+  void GetAccessibleState(ui::AXViewState* state) override;
 
  private:
   static const char kViewClassName[];
 
   // Overridden from View:
-  virtual gfx::Size GetPreferredSize() const override;
-  virtual const char* GetClassName() const override;
-  virtual void OnPaint(gfx::Canvas* canvas) override;
+  gfx::Size GetPreferredSize() const override;
+  const char* GetClassName() const override;
+  void OnPaint(gfx::Canvas* canvas) override;
 
   // Inclusive range used when displaying values.
   double min_display_value_;
   double max_display_value_;
 
   // Current value.  May be outside of [min_display_value_, max_display_value_].
   double current_value_;
 
   // Tooltip text.
   base::string16 tooltip_text_;
 
   DISALLOW_COPY_AND_ASSIGN(ProgressBar);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_PROGRESS_BAR_H_