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

ash/public/interfaces/BUILD.gn

 # Copyright 2015 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.
 
 import("//mojo/public/tools/bindings/mojom.gni")
 
 # Depend upon //ash/public/cpp:ash_public_cpp, which has a public_dep on this.
 # The two targets must be bundled together as the typemaps depend upon
 # //ash/public/cpp, and //ash/public/cpp needs to depend on this for generated
 # code (such as enums and constants).
@@ skipping 14 matching lines @@
     "touch_view.mojom",
     "update.mojom",
     "volume.mojom",
     "vpn_list.mojom",
     "wallpaper.mojom",
     "window_style.mojom",
   ]
 
   public_deps = [
     "//components/signin/public/interfaces",
+    "//mojo/common:common_custom_types",
     "//skia/public/interfaces",
+    "//ui/events/mojo:interfaces",
   ]
 
   export_class_attribute = "ASH_PUBLIC_EXPORT"
   export_define = "ASH_PUBLIC_IMPLEMENTATION=1"
   export_header = "ash/public/cpp/ash_public_export.h"
 }