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

ui/display/chromeos/x11/native_display_delegate_x11.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 UI_DISPLAY_CHROMEOS_X11_NATIVE_DISPLAY_DELEGATE_X11_H_
 #define UI_DISPLAY_CHROMEOS_X11_NATIVE_DISPLAY_DELEGATE_X11_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 48 matching lines @@
 
     // Returns the list of current outputs. This is used to discard duplicate
     // events.
     virtual const std::vector<DisplaySnapshot*>& GetCachedDisplays() const = 0;
 
     // Notify |observers_| that a change in configuration has occurred.
     virtual void NotifyDisplayObservers() = 0;
   };
 
   NativeDisplayDelegateX11();
-  virtual ~NativeDisplayDelegateX11();
+  ~NativeDisplayDelegateX11() override;
 
   // NativeDisplayDelegate overrides:
-  virtual void Initialize() override;
-  virtual void GrabServer() override;
-  virtual void UngrabServer() override;
-  virtual bool TakeDisplayControl() override;
-  virtual bool RelinquishDisplayControl() override;
-  virtual void SyncWithServer() override;
-  virtual void SetBackgroundColor(uint32_t color_argb) override;
-  virtual void ForceDPMSOn() override;
-  virtual void GetDisplays(const GetDisplaysCallback& callback) override;
-  virtual void AddMode(const DisplaySnapshot& output,
-                       const DisplayMode* mode) override;
-  virtual void Configure(const DisplaySnapshot& output,
-                         const DisplayMode* mode,
-                         const gfx::Point& origin,
-                         const ConfigureCallback& callback) override;
-  virtual void CreateFrameBuffer(const gfx::Size& size) override;
-  virtual bool GetHDCPState(const DisplaySnapshot& output,
-                            HDCPState* state) override;
-  virtual bool SetHDCPState(const DisplaySnapshot& output,
-                            HDCPState state) override;
-  virtual std::vector<ColorCalibrationProfile>
-      GetAvailableColorCalibrationProfiles(
-          const DisplaySnapshot& output) override;
-  virtual bool SetColorCalibrationProfile(
-      const DisplaySnapshot& output,
-      ColorCalibrationProfile new_profile) override;
-  virtual void AddObserver(NativeDisplayObserver* observer) override;
-  virtual void RemoveObserver(NativeDisplayObserver* observer) override;
+  void Initialize() override;
+  void GrabServer() override;
+  void UngrabServer() override;
+  bool TakeDisplayControl() override;
+  bool RelinquishDisplayControl() override;
+  void SyncWithServer() override;
+  void SetBackgroundColor(uint32_t color_argb) override;
+  void ForceDPMSOn() override;
+  void GetDisplays(const GetDisplaysCallback& callback) override;
+  void AddMode(const DisplaySnapshot& output, const DisplayMode* mode) override;
+  void Configure(const DisplaySnapshot& output,
+                 const DisplayMode* mode,
+                 const gfx::Point& origin,
+                 const ConfigureCallback& callback) override;
+  void CreateFrameBuffer(const gfx::Size& size) override;
+  bool GetHDCPState(const DisplaySnapshot& output, HDCPState* state) override;
+  bool SetHDCPState(const DisplaySnapshot& output, HDCPState state) override;
+  std::vector<ColorCalibrationProfile> GetAvailableColorCalibrationProfiles(
+      const DisplaySnapshot& output) override;
+  bool SetColorCalibrationProfile(const DisplaySnapshot& output,
+                                  ColorCalibrationProfile new_profile) override;
+  void AddObserver(NativeDisplayObserver* observer) override;
+  void RemoveObserver(NativeDisplayObserver* observer) override;
 
  private:
   class HelperDelegateX11;
 
   // Parses all the modes made available by |screen_|.
   void InitModes();
 
   // Helper method for GetOutputs() that returns an OutputSnapshot struct based
   // on the passed-in information.
   DisplaySnapshotX11* InitDisplaySnapshot(RROutput id,
@@ skipping 47 matching lines @@
 
   // A background color used during boot time + multi displays.
   uint32_t background_color_argb_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeDisplayDelegateX11);
 };
 
 }  // namespace ui
 
 #endif  // UI_DISPLAY_CHROMEOS_X11_NATIVE_DISPLAY_DELEGATE_X11_H_