mash: Remove shelf app menu item objects.

ash/common/shelf/shelf_item_delegate.h

 // Copyright 2013 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_ITEM_DELEGATE_H_
 #define ASH_COMMON_SHELF_SHELF_ITEM_DELEGATE_H_
 
 #include "ash/ash_export.h"
 #include "ash/public/cpp/shelf_application_menu_item.h"
 #include "ash/public/cpp/shelf_types.h"
@@ skipping 17 matching lines @@
                                    int64_t display_id,
                                    ShelfLaunchSource source) = 0;
 
   // A helper to call ItemSelected with a source and default arguments.
   ShelfAction ItemSelectedBySource(ShelfLaunchSource source);
 
   // Returns any application menu items that should appear for this shelf item.
   // |event_flags| specifies the flags of the event which triggered this menu.
   virtual ShelfAppMenuItemList GetAppMenuItems(int event_flags) = 0;
 
+  // Called on invocation of a shelf item's application menu command.
+  virtual void ExecuteCommand(uint32_t command_id, int32_t event_flags) = 0;

[James Cook, 2017/03/01 19:50:48]

nit: #include <stdint.h>

Also, event_flags is int, not int32_t above, would be nice to standardize.

[msw, 2017/03/02 02:59:20]

Done.

+
   // Closes all windows associated with this item.
   virtual void Close() = 0;
 
   DISALLOW_COPY_AND_ASSIGN(ShelfItemDelegate);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SHELF_SHELF_ITEM_DELEGATE_H_