mash: Fix launching touch hud app in mash mode.

chrome/browser/ui/BUILD.gn

 # Copyright 2014 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/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/split_static_library.gni")
 import("//chrome/common/features.gni")
 import("//media/media_options.gni")
@@ skipping 1122 matching lines @@
       "window_sizer/window_sizer.cc",
       "window_sizer/window_sizer.h",
     ]
     deps += [
       "//apps",
       "//chrome/browser/profile_resetter:profile_reset_report_proto",
       "//chrome/common:features",
       "//components/feedback/proto",
       "//components/proximity_auth/webui",
       "//device/bluetooth",
+      "//mash/public/interfaces",
     ]
   }
 
   if (enable_basic_printing || enable_print_preview) {
     deps += [ "//printing" ]
   }
 
   if (enable_nacl) {
     sources += [
       "webui/nacl_ui.cc",
@@ skipping 2207 matching lines @@
       "passwords/passwords_model_delegate_mock.cc",
       "passwords/passwords_model_delegate_mock.h",
     ]
     deps += [ "//chrome/test:test_support_ui" ]
   }
 
   if (enable_extensions) {
     deps += [ "//extensions/browser" ]
   }
 }