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

ui/gfx/screen_android.cc

Index: ui/gfx/screen_android.cc
diff --git a/ui/gfx/screen_android.cc b/ui/gfx/screen_android.cc
index 1f2f5f8bfd10a6495af16f6abfbb75c5eef9c3fc..c286e603f2d8b621662a47f7cce4a0755cbd92a0 100644
--- a/ui/gfx/screen_android.cc
+++ b/ui/gfx/screen_android.cc
@@ -15,20 +15,19 @@ 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
@@ -51,32 +50,29 @@ class ScreenAndroid : public Screen {
     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.
   }