Turn RootWindowController Menus Async

ash/root_window_controller.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ASH_ROOT_WINDOW_CONTROLLER_H_
 #define ASH_ROOT_WINDOW_CONTROLLER_H_
 
 #include <map>
 #include <memory>
 
@@ skipping 16 matching lines @@
 namespace gfx {
 class Point;
 }
 
 namespace keyboard {
 class KeyboardController;
 }
 
 namespace ui {
 class EventHandler;
+class MenuModel;
 }
 
 namespace views {
+class MenuModelAdapter;
+class MenuRunner;
 class Widget;
 }
 
 namespace wm {
 class InputMethodEventFilter;
 class RootWindowEventFilter;
 class ScopedCaptureClient;
 }
 
 namespace ash {
@@ skipping 197 matching lines @@
   // Creates each of the special window containers that holds windows of various
   // types in the shell UI.
   void CreateContainersInRootWindow(aura::Window* root_window);
 
   // Enables projection touch HUD.
   void EnableTouchHudProjection();
 
   // Disables projection touch HUD.
   void DisableTouchHudProjection();
 
+  // Callback for MenuModelAdapter.
+  void OnMenuClosed();
+
   // Overridden from ShellObserver.
   void OnLoginStateChanged(user::LoginStatus status) override;
   void OnTouchHudProjectionToggled(bool enabled) override;
 
   std::unique_ptr<AshWindowTreeHost> ash_host_;
   RootWindowLayoutManager* root_window_layout_;
 
   std::unique_ptr<StackingController> stacking_controller_;
 
   // The shelf for managing the shelf and the status widget.
@@ skipping 29 matching lines @@
   TouchHudDebug* touch_hud_debug_;
   TouchHudProjection* touch_hud_projection_;
 
   // Handles double clicks on the panel window header.
   std::unique_ptr<ui::EventHandler> panel_container_handler_;
 
   std::unique_ptr<DesktopBackgroundWidgetController> wallpaper_controller_;
   std::unique_ptr<AnimatingDesktopController> animating_wallpaper_controller_;
   std::unique_ptr<::wm::ScopedCaptureClient> capture_client_;
 
+  // Manages the context menu.
+  std::unique_ptr<ui::MenuModel> menu_model_;
+  std::unique_ptr<views::MenuModelAdapter> menu_model_adapter_;
+  std::unique_ptr<views::MenuRunner> menu_runner_;
+
   DISALLOW_COPY_AND_ASSIGN(RootWindowController);
 };
 
 // On classic ash, returns the RootWindowController for the given |root_window|.
 // On mus ash, returns the RootWindowController for the primary display.
 // See RootWindowController class comment above.
 ASH_EXPORT RootWindowController* GetRootWindowController(
     const aura::Window* root_window);
 
 }  // namespace ash
 
 #endif  // ASH_ROOT_WINDOW_CONTROLLER_H_