replace OVERRIDE and FINAL with override and final in ash/

ash/shelf/app_list_shelf_item_delegate.h

Index: ash/shelf/app_list_shelf_item_delegate.h
diff --git a/ash/shelf/app_list_shelf_item_delegate.h b/ash/shelf/app_list_shelf_item_delegate.h
index 264273073cf680cb78330427974e1230cb4dba4e..f40d2c620012f8c18eb9dfce47ed38acd549331b 100644
--- a/ash/shelf/app_list_shelf_item_delegate.h
+++ b/ash/shelf/app_list_shelf_item_delegate.h
@@ -19,13 +19,13 @@ class AppListShelfItemDelegate : public ShelfItemDelegate {
   virtual ~AppListShelfItemDelegate();
 
   // ShelfItemDelegate:
-  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;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AppListShelfItemDelegate);