replace OVERRIDE and FINAL with override and final in ash/

ash/shelf/shelf_window_watcher_item_delegate.h

Index: ash/shelf/shelf_window_watcher_item_delegate.h
diff --git a/ash/shelf/shelf_window_watcher_item_delegate.h b/ash/shelf/shelf_window_watcher_item_delegate.h
index 9de8f6fbf0bb26b1db65287c051edf606e0b4127..b39a70b23db8b6b17f086b0a6e751458e34d19e7 100644
--- a/ash/shelf/shelf_window_watcher_item_delegate.h
+++ b/ash/shelf/shelf_window_watcher_item_delegate.h
@@ -25,13 +25,13 @@ class ShelfWindowWatcherItemDelegate : public ShelfItemDelegate {
 
  private:
   // ShelfItemDelegate overrides:
-  virtual bool ItemSelected(const ui::Event& event) OVERRIDE;
-  virtual base::string16 GetTitle() OVERRIDE;
-  virtual ui::MenuModel* CreateContextMenu(aura::Window* root_window) OVERRIDE;
-  virtual ShelfMenuModel* CreateApplicationMenu(int event_flags) OVERRIDE;
-  virtual bool IsDraggable() OVERRIDE;
-  virtual bool ShouldShowTooltip() OVERRIDE;
-  virtual void Close() OVERRIDE;
+  virtual bool ItemSelected(const ui::Event& event) override;
+  virtual base::string16 GetTitle() override;
+  virtual ui::MenuModel* CreateContextMenu(aura::Window* root_window) override;
+  virtual ShelfMenuModel* CreateApplicationMenu(int event_flags) override;
+  virtual bool IsDraggable() override;
+  virtual bool ShouldShowTooltip() override;
+  virtual void Close() override;
 
   // Stores a Window associated with this item. Not owned.
   aura::Window* window_;