mash: Use mojo for ShelfItemDelegate and [app] MenuItem.

ash/common/shelf/shelf_view.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_COMMON_SHELF_SHELF_VIEW_H_
 #define ASH_COMMON_SHELF_SHELF_VIEW_H_
 
 #include <memory>
 #include <string>
 #include <utility>
@@ skipping 274 matching lines @@
   void OnGestureEvent(ui::GestureEvent* event) override;
 
   // Overridden from ShelfModelObserver:
   void ShelfItemAdded(int model_index) override;
   void ShelfItemRemoved(int model_index, ShelfID id) override;
   void ShelfItemChanged(int model_index, const ShelfItem& old_item) override;
   void ShelfItemMoved(int start_index, int target_index) override;
   void OnSetShelfItemDelegate(ShelfID id,
                               ShelfItemDelegate* item_delegate) override;
 
+  // Handles the result of an item selection, records the |action| taken and
+  // optionally shows an application menu with the given |menu_items|.
+  void AfterItemSelected(const ShelfItem& item,
+                         views::Button* sender,
+                         std::unique_ptr<ui::Event> event,
+                         views::InkDrop* ink_drop,
+                         ShelfAction action,
+                         ShelfItemDelegate::MenuItemList menu_items);
+
   // Show a list of all running items for this shelf |item|; it only shows a
   // menu if there are multiple running items. |source| specifies the view
   // responsible for showing the menu, and the bubble will point towards it.
   // The |event_flags| are the flags of the event which triggered this menu.
   // Returns |true| if a menu is shown.
   bool ShowListMenuForView(const ShelfItem& item,
                            views::View* source,
                            const ui::Event& event,
                            views::InkDrop* ink_drop);
 
@@ skipping 156 matching lines @@
 
   // Tracks UMA metrics based on shelf button press actions.
   ShelfButtonPressedMetricTracker shelf_button_pressed_metric_tracker_;
 
   DISALLOW_COPY_AND_ASSIGN(ShelfView);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SHELF_SHELF_VIEW_H_