C++11 override style change for athena

athena/wm/window_overview_mode.cc

Index: athena/wm/window_overview_mode.cc
diff --git a/athena/wm/window_overview_mode.cc b/athena/wm/window_overview_mode.cc
index 70deb30d6df7a93ac3c08cbbebd41bc5d587f046..edb343b493e96dc128c387775d85cb37c4d33ca9 100644
--- a/athena/wm/window_overview_mode.cc
+++ b/athena/wm/window_overview_mode.cc
@@ -261,16 +261,16 @@ void AnimateWindowTo(aura::Window* animate_window,
 class StaticWindowTargeter : public aura::WindowTargeter {
  public:
   explicit StaticWindowTargeter(aura::Window* target) : target_(target) {}
-  virtual ~StaticWindowTargeter() {}
+  ~StaticWindowTargeter() override {}
 
  private:
   // aura::WindowTargeter:
-  virtual ui::EventTarget* FindTargetForEvent(ui::EventTarget* root,
+  ui::EventTarget* FindTargetForEvent(ui::EventTarget* root,
                                               ui::Event* event) override {
     return target_;
   }
 
-  virtual ui::EventTarget* FindTargetForLocatedEvent(
+  ui::EventTarget* FindTargetForLocatedEvent(
       ui::EventTarget* root,
       ui::LocatedEvent* event) override {
     return target_;
@@ -309,7 +309,7 @@ class WindowOverviewModeImpl : public WindowOverviewMode,
     window_list_provider_->AddObserver(this);
   }
 
-  virtual ~WindowOverviewModeImpl() {
+  ~WindowOverviewModeImpl() override {
     window_list_provider_->RemoveObserver(this);
     container_->set_target_handler(container_->delegate());
     RemoveAnimationObserver();
@@ -697,7 +697,7 @@ class WindowOverviewModeImpl : public WindowOverviewMode,
   }
 
   // ui::EventHandler:
-  virtual void OnMouseEvent(ui::MouseEvent* mouse) override {
+  void OnMouseEvent(ui::MouseEvent* mouse) override {
     if (mouse->type() == ui::ET_MOUSE_PRESSED) {
       aura::Window* select = SelectWindowAt(mouse);
       if (select) {
@@ -709,12 +709,12 @@ class WindowOverviewModeImpl : public WindowOverviewMode,
     }
   }
 
-  virtual void OnScrollEvent(ui::ScrollEvent* scroll) override {
+  void OnScrollEvent(ui::ScrollEvent* scroll) override {
     if (scroll->type() == ui::ET_SCROLL)
       DoScroll(scroll->y_offset());
   }
 
-  virtual void OnGestureEvent(ui::GestureEvent* gesture) override {
+  void OnGestureEvent(ui::GestureEvent* gesture) override {
     if (gesture->type() == ui::ET_GESTURE_TAP) {
       aura::Window* select = SelectWindowAt(gesture);
       if (select) {
@@ -776,7 +776,7 @@ class WindowOverviewModeImpl : public WindowOverviewMode,
   }
 
   // ui::CompositorAnimationObserver:
-  virtual void OnAnimationStep(base::TimeTicks timestamp) override {
+  void OnAnimationStep(base::TimeTicks timestamp) override {
     CHECK(fling_);
     gfx::Vector2dF delta;
     bool fling_active = fling_->ComputeScrollDeltaAtTime(timestamp, &delta);
@@ -791,14 +791,14 @@ class WindowOverviewModeImpl : public WindowOverviewMode,
   }
 
   // WindowListProviderObserver:
-  virtual void OnWindowStackingChanged() override {
+  void OnWindowStackingChanged() override {
     // Recompute the states of all windows. There isn't enough information at
     // this point to do anything more clever.
     ComputeTerminalStatesForAllWindows();
     SetInitialWindowStates();
   }
 
-  virtual void OnWindowRemoved(aura::Window* removed_window,
+  void OnWindowRemoved(aura::Window* removed_window,
                                int index) override {
     const aura::Window::Windows& windows =
         window_list_provider_->GetWindowList();