Standardize usage of virtual/override/final specifiers.

ui/views/layout/box_layout.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_LAYOUT_BOX_LAYOUT_H_
 #define UI_VIEWS_LAYOUT_BOX_LAYOUT_H_
 
 #include <map>
 
 #include "base/basictypes.h"
@@ skipping 45 matching lines @@
   };
 
   // Use |inside_border_horizontal_spacing| and
   // |inside_border_vertical_spacing| to add additional space between the child
   // view area and the host view border. |between_child_spacing| controls the
   // space in between child views.
   BoxLayout(Orientation orientation,
             int inside_border_horizontal_spacing,
             int inside_border_vertical_spacing,
             int between_child_spacing);
-  virtual ~BoxLayout();
+  ~BoxLayout() override;
 
   void set_main_axis_alignment(MainAxisAlignment main_axis_alignment) {
     main_axis_alignment_ = main_axis_alignment;
   }
 
   void set_cross_axis_alignment(CrossAxisAlignment cross_axis_alignment) {
     cross_axis_alignment_ = cross_axis_alignment;
   }
 
   void set_inside_border_insets(const gfx::Insets& insets) {
@@ skipping 14 matching lines @@
   void SetFlexForView(const View* view, int flex);
 
   // Clears the flex for the given |view|, causing it to use the default
   // flex.
   void ClearFlexForView(const View* view);
 
   // Sets the flex for views to use when none is specified.
   void SetDefaultFlex(int default_flex);
 
   // Overridden from views::LayoutManager:
-  virtual void Installed(View* host) override;
-  virtual void Uninstalled(View* host) override;
-  virtual void ViewRemoved(View* host, View* view) override;
-  virtual void Layout(View* host) override;
-  virtual gfx::Size GetPreferredSize(const View* host) const override;
-  virtual int GetPreferredHeightForWidth(const View* host,
-                                         int width) const override;
+  void Installed(View* host) override;
+  void Uninstalled(View* host) override;
+  void ViewRemoved(View* host, View* view) override;
+  void Layout(View* host) override;
+  gfx::Size GetPreferredSize(const View* host) const override;
+  int GetPreferredHeightForWidth(const View* host, int width) const override;
 
  private:
   // Returns the flex for the specified |view|.
   int GetFlexForView(const View* view) const;
 
   // Returns the size and position along the main axis of |rect|.
   int MainAxisSize(const gfx::Rect& rect) const;
   int MainAxisPosition(const gfx::Rect& rect) const;
 
   // Sets the size and position along the main axis of |rect|.
@@ skipping 50 matching lines @@
 
   // The view that this BoxLayout is managing the layout for.
   views::View* host_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(BoxLayout);
 };
 
 } // namespace views
 
 #endif  // UI_VIEWS_LAYOUT_BOX_LAYOUT_H_