replace OVERRIDE and FINAL with override and final in ash/

ash/wm/workspace/workspace_event_handler_unittest.cc

Index: ash/wm/workspace/workspace_event_handler_unittest.cc
diff --git a/ash/wm/workspace/workspace_event_handler_unittest.cc b/ash/wm/workspace/workspace_event_handler_unittest.cc
index e9c9f1593bb269a6c85ec5b7ef3395d7ebeb0bfd..85572fc8d50413ec5d27791d258fcb696ca7f6be 100644
--- a/ash/wm/workspace/workspace_event_handler_unittest.cc
+++ b/ash/wm/workspace/workspace_event_handler_unittest.cc
@@ -71,7 +71,7 @@ class WindowPropertyObserver : public aura::WindowObserver {
  private:
   virtual void OnWindowPropertyChanged(aura::Window* window,
                                        const void* key,
-                                       intptr_t old) OVERRIDE {
+                                       intptr_t old) override {
     properties_changed_.push_back(key);
   }