Standardize usage of virtual/override/final specifiers.

ui/views/controls/scrollbar/native_scroll_bar_views.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 UI_VIEWS_CONTROLS_SCROLLBAR_NATIVE_SCROLL_BAR_VIEWS_H_
 #define UI_VIEWS_CONTROLS_SCROLLBAR_NATIVE_SCROLL_BAR_VIEWS_H_
 
 #include "base/compiler_specific.h"
 #include "ui/gfx/point.h"
 #include "ui/native_theme/native_theme.h"
@@ skipping 12 matching lines @@
 
 // Views implementation for the scrollbar.
 class VIEWS_EXPORT NativeScrollBarViews : public BaseScrollBar,
                                           public ButtonListener,
                                           public NativeScrollBarWrapper {
  public:
   static const char kViewClassName[];
 
   // Creates new scrollbar, either horizontal or vertical.
   explicit NativeScrollBarViews(NativeScrollBar* native_scroll_bar);
-  virtual ~NativeScrollBarViews();
+  ~NativeScrollBarViews() override;
 
  private:
   // View overrides:
-  virtual void Layout() override;
-  virtual void OnPaint(gfx::Canvas* canvas) override;
-  virtual gfx::Size GetPreferredSize() const override;
-  virtual const char* GetClassName() const override;
+  void Layout() override;
+  void OnPaint(gfx::Canvas* canvas) override;
+  gfx::Size GetPreferredSize() const override;
+  const char* GetClassName() const override;
 
   // ScrollBar overrides:
-  virtual int GetLayoutSize() const override;
+  int GetLayoutSize() const override;
 
   // BaseScrollBar overrides:
-  virtual void ScrollToPosition(int position) override;
-  virtual int GetScrollIncrement(bool is_page, bool is_positive) override;
+  void ScrollToPosition(int position) override;
+  int GetScrollIncrement(bool is_page, bool is_positive) override;
 
   // BaseButton::ButtonListener overrides:
-  virtual void ButtonPressed(Button* sender,
-                             const ui::Event& event) override;
+  void ButtonPressed(Button* sender, const ui::Event& event) override;
 
   // NativeScrollBarWrapper overrides:
-  virtual int GetPosition() const override;
-  virtual View* GetView() override;
-  virtual void Update(int viewport_size,
-                      int content_size,
-                      int current_pos) override;
+  int GetPosition() const override;
+  View* GetView() override;
+  void Update(int viewport_size, int content_size, int current_pos) override;
 
   // Returns the area for the track. This is the area of the scrollbar minus
   // the size of the arrow buttons.
-  virtual gfx::Rect GetTrackBounds() const override;
+  gfx::Rect GetTrackBounds() const override;
 
   // The NativeScrollBar we are bound to.
   NativeScrollBar* native_scroll_bar_;
 
   // The scroll bar buttons (Up/Down, Left/Right).
   Button* prev_button_;
   Button* next_button_;
 
   ui::NativeTheme::ExtraParams params_;
   ui::NativeTheme::Part part_;
   ui::NativeTheme::State state_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeScrollBarViews);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_SCROLLBAR_NATIVE_SCROLL_BAR_VIEWS_H_