Hook up Chrome's wallpaper picker for mash.

ash/mus/BUILD.gn

 # Copyright 2016 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("//build/config/ui.gni")
 import("//mojo/public/mojo_application.gni")
 import("//mojo/public/mojo_application_manifest.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//tools/grit/repack.gni")
 
@@ skipping 10 matching lines @@
     "pointer_watcher_delegate_mus.cc",
     "pointer_watcher_delegate_mus.h",
     "shelf_delegate_mus.cc",
     "shelf_delegate_mus.h",
     "shell_delegate_mus.cc",
     "shell_delegate_mus.h",
     "stub_context_factory.cc",
     "stub_context_factory.h",
     "sysui_application.cc",
     "sysui_application.h",
+    "user_wallpaper_delegate_mus.cc",
+    "user_wallpaper_delegate_mus.h",
   ]
 
   deps = [
     "//ash",
     "//cc",
     "//cc/surfaces",
     "//components/mus/common:mus_common",
     "//components/mus/public/cpp",
     "//components/mus/public/interfaces",
     "//components/user_manager",
     "//device/bluetooth",
+    "//mash/public/interfaces",
     "//mash/shelf/public/interfaces",
     "//mash/wm/public/interfaces",
     "//mojo/common:common_base",
     "//mojo/converters/geometry",
     "//mojo/converters/input_events",
     "//services/catalog/public/cpp",
     "//services/shell/public/cpp",
     "//services/tracing/public/cpp",
     "//skia/public",
     "//ui/app_list/presenter",
@@ skipping 70 matching lines @@
 
 repack("resources_200") {
   sources = [
     "$root_out_dir/ash_test_resources_200_percent.pak",
   ]
   output = "$root_out_dir/ash_resources_200_percent.pak"
   deps = [
     "//ash/resources:ash_test_resources_200_percent",
   ]
 }