Standardize usage of virtual/override/final specifiers.

ui/views/widget/native_widget_private.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_WIDGET_NATIVE_WIDGET_PRIVATE_H_
 #define UI_VIEWS_WIDGET_NATIVE_WIDGET_PRIVATE_H_
 
 #include "base/strings/string16.h"
 #include "ui/base/ui_base_types.h"
 #include "ui/gfx/native_widget_types.h"
@@ skipping 26 matching lines @@
 //  Many of the methods here are pass-thrus for Widget, and as such there is no
 //  documentation for them here. In that case, see methods of the same name in
 //  widget.h.
 //
 //  IMPORTANT: This type is intended for use only by the views system and for
 //             NativeWidget implementations. This file should not be included
 //             in code that does not fall into one of these use cases.
 //
 class VIEWS_EXPORT NativeWidgetPrivate : public NativeWidget {
  public:
-  virtual ~NativeWidgetPrivate() {}
+  ~NativeWidgetPrivate() override {}
 
   // Creates an appropriate default NativeWidgetPrivate implementation for the
   // current OS/circumstance.
   static NativeWidgetPrivate* CreateNativeWidget(
       internal::NativeWidgetDelegate* delegate);
 
   static NativeWidgetPrivate* GetNativeWidgetForNativeView(
       gfx::NativeView native_view);
   static NativeWidgetPrivate* GetNativeWidgetForNativeWindow(
       gfx::NativeWindow native_window);
@@ skipping 166 matching lines @@
   virtual void SetVisibilityChangedAnimationsEnabled(bool value) = 0;
   virtual ui::NativeTheme* GetNativeTheme() const = 0;
   virtual void OnRootViewLayout() = 0;
   virtual bool IsTranslucentWindowOpacitySupported() const = 0;
   virtual void OnSizeConstraintsChanged() = 0;
 
   // Repost an unhandled event to the native widget for default OS processing.
   virtual void RepostNativeEvent(gfx::NativeEvent native_event) = 0;
 
   // Overridden from NativeWidget:
-  virtual internal::NativeWidgetPrivate* AsNativeWidgetPrivate() override;
+  internal::NativeWidgetPrivate* AsNativeWidgetPrivate() override;
 };
 
 }  // namespace internal
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_NATIVE_WIDGET_PRIVATE_H_