Update {virtual,override} to follow C++11 style in chrome.

chrome/browser/ui/views/frame/browser_desktop_window_tree_host_win.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 CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_DESKTOP_WINDOW_TREE_HOST_WIN_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_DESKTOP_WINDOW_TREE_HOST_WIN_H_
 
 #include <windows.h>
 #include <uxtheme.h>
 
@@ skipping 11 matching lines @@
 }
 
 class BrowserDesktopWindowTreeHostWin : public BrowserDesktopWindowTreeHost,
                                         public views::DesktopWindowTreeHostWin {
  public:
   BrowserDesktopWindowTreeHostWin(
       views::internal::NativeWidgetDelegate* native_widget_delegate,
       views::DesktopNativeWidgetAura* desktop_native_widget_aura,
       BrowserView* browser_view,
       BrowserFrame* browser_frame);
-  virtual ~BrowserDesktopWindowTreeHostWin();
+  ~BrowserDesktopWindowTreeHostWin() override;
 
  private:
   views::NativeMenuWin* GetSystemMenu();
 
   // Overridden from BrowserDesktopWindowTreeHost:
-  virtual DesktopWindowTreeHost* AsDesktopWindowTreeHost() override;
-  virtual int GetMinimizeButtonOffset() const override;
-  virtual bool UsesNativeSystemMenu() const override;
+  DesktopWindowTreeHost* AsDesktopWindowTreeHost() override;
+  int GetMinimizeButtonOffset() const override;
+  bool UsesNativeSystemMenu() const override;
 
   // Overridden from DesktopWindowTreeHostWin:
-  virtual int GetInitialShowState() const override;
-  virtual bool GetClientAreaInsets(gfx::Insets* insets) const override;
-  virtual void HandleCreate() override;
-  virtual void HandleFrameChanged() override;
-  virtual bool PreHandleMSG(UINT message,
-                            WPARAM w_param,
-                            LPARAM l_param,
-                            LRESULT* result) override;
-  virtual void PostHandleMSG(UINT message,
-                             WPARAM w_param,
-                             LPARAM l_param) override;
-  virtual bool IsUsingCustomFrame() const override;
-  virtual bool ShouldUseNativeFrame() const override;
-  virtual void FrameTypeChanged() override;
+  int GetInitialShowState() const override;
+  bool GetClientAreaInsets(gfx::Insets* insets) const override;
+  void HandleCreate() override;
+  void HandleFrameChanged() override;
+  bool PreHandleMSG(UINT message,
+                    WPARAM w_param,
+                    LPARAM l_param,
+                    LRESULT* result) override;
+  void PostHandleMSG(UINT message, WPARAM w_param, LPARAM l_param) override;
+  bool IsUsingCustomFrame() const override;
+  bool ShouldUseNativeFrame() const override;
+  void FrameTypeChanged() override;
 
   void UpdateDWMFrame();
 
   MARGINS GetDWMFrameMargins() const;
 
   BrowserView* browser_view_;
   BrowserFrame* browser_frame_;
 
   MinimizeButtonMetrics minimize_button_metrics_;
 
   scoped_ptr<BrowserWindowPropertyManager> browser_window_property_manager_;
 
   // The wrapped system menu itself.
   scoped_ptr<views::NativeMenuWin> system_menu_;
 
   // Necessary to avoid corruption on NC paint in Aero mode.
   bool did_gdi_clear_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserDesktopWindowTreeHostWin);
 };
 
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_DESKTOP_WINDOW_TREE_HOST_WIN_H_