replace OVERRIDE and FINAL with override and final in ash/

ash/wm/toplevel_window_event_handler.cc

Index: ash/wm/toplevel_window_event_handler.cc
diff --git a/ash/wm/toplevel_window_event_handler.cc b/ash/wm/toplevel_window_event_handler.cc
index ce1d020d5bdf7dd2d42960438f59fef55bac1284..22a3e07d541a1ac0293767f6322632083af6e547 100644
--- a/ash/wm/toplevel_window_event_handler.cc
+++ b/ash/wm/toplevel_window_event_handler.cc
@@ -100,11 +100,11 @@ class ToplevelWindowEventHandler::ScopedWindowResizer
   WindowResizer* resizer() { return resizer_.get(); }
 
   // WindowObserver overrides:
-  virtual void OnWindowDestroying(aura::Window* window) OVERRIDE;
+  virtual void OnWindowDestroying(aura::Window* window) override;
 
   // WindowStateObserver overrides:
   virtual void OnPreWindowStateTypeChange(wm::WindowState* window_state,
-                                          wm::WindowStateType type) OVERRIDE;
+                                          wm::WindowStateType type) override;
 
  private:
   ToplevelWindowEventHandler* handler_;