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

ui/gfx/screen_android.cc

 // 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.
 
 #include "ui/gfx/screen.h"
 
 #include "base/logging.h"
 #include "ui/gfx/android/device_display_info.h"
 #include "ui/gfx/display.h"
 #include "ui/gfx/geometry/size_conversions.h"
 
 namespace gfx {
 
 class ScreenAndroid : public Screen {
  public:
   ScreenAndroid() {}
 
-  virtual gfx::Point GetCursorScreenPoint() override { return gfx::Point(); }
+  gfx::Point GetCursorScreenPoint() override { return gfx::Point(); }
 
-  virtual gfx::NativeWindow GetWindowUnderCursor() override {
+  gfx::NativeWindow GetWindowUnderCursor() override {
     NOTIMPLEMENTED();
     return NULL;
   }
 
-  virtual gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point)
-      override {
+  gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point) override {
     NOTIMPLEMENTED();
     return NULL;
   }
 
-  virtual gfx::Display GetPrimaryDisplay() const override {
+  gfx::Display GetPrimaryDisplay() const override {
     gfx::DeviceDisplayInfo device_info;
     const float device_scale_factor = device_info.GetDIPScale();
     // Note: GetPhysicalDisplayWidth/Height() does not subtract window
     // decorations etc. Use it instead of GetDisplayWidth/Height() when
     // available.
     const gfx::Rect bounds_in_pixels =
         gfx::Rect(device_info.GetPhysicalDisplayWidth()
                       ? device_info.GetPhysicalDisplayWidth()
                       : device_info.GetDisplayWidth(),
                   device_info.GetPhysicalDisplayHeight()
                       ? device_info.GetPhysicalDisplayHeight()
                       : device_info.GetDisplayHeight());
     const gfx::Rect bounds_in_dip =
         gfx::Rect(gfx::ToCeiledSize(gfx::ScaleSize(
             bounds_in_pixels.size(), 1.0f / device_scale_factor)));
     gfx::Display display(0, bounds_in_dip);
     if (!gfx::Display::HasForceDeviceScaleFactor())
       display.set_device_scale_factor(device_scale_factor);
     display.SetRotationAsDegree(device_info.GetRotationDegrees());
     return display;
   }
 
-  virtual gfx::Display GetDisplayNearestWindow(
-      gfx::NativeView view) const override {
+  gfx::Display GetDisplayNearestWindow(gfx::NativeView view) const override {
     return GetPrimaryDisplay();
   }
 
-  virtual gfx::Display GetDisplayNearestPoint(
-      const gfx::Point& point) const override {
+  gfx::Display GetDisplayNearestPoint(const gfx::Point& point) const override {
     return GetPrimaryDisplay();
   }
 
-  virtual int GetNumDisplays() const override { return 1; }
+  int GetNumDisplays() const override { return 1; }
 
-  virtual std::vector<gfx::Display> GetAllDisplays() const override {
+  std::vector<gfx::Display> GetAllDisplays() const override {
     return std::vector<gfx::Display>(1, GetPrimaryDisplay());
   }
 
-  virtual gfx::Display GetDisplayMatching(
-      const gfx::Rect& match_rect) const override {
+  gfx::Display GetDisplayMatching(const gfx::Rect& match_rect) const override {
     return GetPrimaryDisplay();
   }
 
-  virtual void AddObserver(DisplayObserver* observer) override {
+  void AddObserver(DisplayObserver* observer) override {
     // no display change on Android.
   }
 
-  virtual void RemoveObserver(DisplayObserver* observer) override {
+  void RemoveObserver(DisplayObserver* observer) override {
     // no display change on Android.
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ScreenAndroid);
 };
 
 Screen* CreateNativeScreen() {
   return new ScreenAndroid;
 }
 
 }  // namespace gfx