mash: Remove shelf app menu item objects.

ash/common/shelf/shelf_item_delegate.h

Index: ash/common/shelf/shelf_item_delegate.h
diff --git a/ash/common/shelf/shelf_item_delegate.h b/ash/common/shelf/shelf_item_delegate.h
index ce7dd17c3e6549e8a99eef6e98c731ff5d537592..3d58b06a0990b1a743e945793fde434e0a0e8afa 100644
--- a/ash/common/shelf/shelf_item_delegate.h
+++ b/ash/common/shelf/shelf_item_delegate.h
@@ -35,6 +35,9 @@ class ASH_EXPORT ShelfItemDelegate {
   // |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;