Standardize usage of virtual/override/final specifiers.

ash/test/child_modal_window.h

 // Copyright 2014 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 ASH_TEST_CHILD_MODAL_WINDOW_H_
 #define ASH_TEST_CHILD_MODAL_WINDOW_H_
 
 #include "ui/views/controls/button/button.h"
 #include "ui/views/widget/widget_delegate.h"
 #include "ui/views/widget/widget_observer.h"
 
 namespace views {
 class LabelButton;
 class NativeViewHost;
 class Textfield;
 class View;
 class Widget;
 }
 
 namespace ash {
 namespace test {
 
 void CreateChildModalParent(gfx::NativeView context);
 
 class ChildModalParent : public views::WidgetDelegateView,
                          public views::ButtonListener,
                          public views::WidgetObserver {
  public:
   ChildModalParent(gfx::NativeView context);
-  virtual ~ChildModalParent();
+  ~ChildModalParent() override;
 
   void ShowChild();
   gfx::NativeWindow GetModalParent() const;
   gfx::NativeWindow GetChild() const;
 
  private:
   views::Widget* CreateChild();
 
   // Overridden from views::WidgetDelegate:
-  virtual View* GetContentsView() override;
-  virtual base::string16 GetWindowTitle() const override;
-  virtual bool CanResize() const override;
-  virtual void DeleteDelegate() override;
+  View* GetContentsView() override;
+  base::string16 GetWindowTitle() const override;
+  bool CanResize() const override;
+  void DeleteDelegate() override;
 
   // Overridden from views::View:
-  virtual void Layout() override;
-  virtual void ViewHierarchyChanged(
+  void Layout() override;
+  void ViewHierarchyChanged(
       const ViewHierarchyChangedDetails& details) override;
 
   // Overridden from ButtonListener:
-  virtual void ButtonPressed(views::Button* sender,
-                             const ui::Event& event) override;
+  void ButtonPressed(views::Button* sender, const ui::Event& event) override;
 
   // Overridden from WidgetObserver:
-  virtual void OnWidgetDestroying(views::Widget* widget) override;
+  void OnWidgetDestroying(views::Widget* widget) override;
 
   // The button to toggle showing and hiding the child window. The child window
   // does not block input to this button.
   views::LabelButton* button_;
 
   // The text field to indicate the keyboard focus.
   views::Textfield* textfield_;
 
   // The host for the modal parent.
   views::NativeViewHost* host_;
 
   // The modal parent of the child window. The child window blocks input to this
   // view.
   gfx::NativeWindow modal_parent_;
 
   // The child window.
   views::Widget* child_;
 
   DISALLOW_COPY_AND_ASSIGN(ChildModalParent);
 };
 
 }  // namespace test
 }  // namespace ash
 
 #endif  // ASH_TEST_CHILD_MODAL_WINDOW_H_