C++11 override style change for athena

athena/wm/split_view_controller.h

Index: athena/wm/split_view_controller.h
diff --git a/athena/wm/split_view_controller.h b/athena/wm/split_view_controller.h
index fa87734515ed91b033f17688e9543b9ce3c16b13..e3361c887ebcc897891bc288d938edcfad2360c4 100644
--- a/athena/wm/split_view_controller.h
+++ b/athena/wm/split_view_controller.h
@@ -42,7 +42,7 @@ class ATHENA_EXPORT SplitViewController
   SplitViewController(aura::Window* container,
                       WindowListProvider* window_list_provider);
 
-  virtual ~SplitViewController();
+  ~SplitViewController() override;
 
   bool CanActivateSplitViewMode() const;
   bool IsSplitViewModeActive() const;
@@ -115,22 +115,22 @@ class ATHENA_EXPORT SplitViewController
   float GetMinFlingVelocityForTest() const;
 
   // BezelController::ScrollDelegate:
-  virtual void BezelScrollBegin(BezelController::Bezel bezel,
+  void BezelScrollBegin(BezelController::Bezel bezel,
                                 float delta) override;
-  virtual void BezelScrollEnd(float velocity) override;
-  virtual void BezelScrollUpdate(float delta) override;
-  virtual bool BezelCanScroll() override;
+  void BezelScrollEnd(float velocity) override;
+  void BezelScrollUpdate(float delta) override;
+  bool BezelCanScroll() override;
 
   // DragHandleScrollDelegate:
-  virtual void HandleScrollBegin(float delta) override;
-  virtual void HandleScrollEnd(float velocity) override;
-  virtual void HandleScrollUpdate(float delta) override;
+  void HandleScrollBegin(float delta) override;
+  void HandleScrollEnd(float velocity) override;
+  void HandleScrollUpdate(float delta) override;
 
   // WindowManagerObserver:
-  virtual void OnOverviewModeEnter() override;
-  virtual void OnOverviewModeExit() override;
-  virtual void OnSplitViewModeEnter() override;
-  virtual void OnSplitViewModeExit() override;
+  void OnOverviewModeEnter() override;
+  void OnOverviewModeExit() override;
+  void OnSplitViewModeEnter() override;
+  void OnSplitViewModeExit() override;
 
   State state_;