Add a mojom/StructTrait for display::Display.

services/ui/public/cpp/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.
 
 source_set("cpp") {
   sources = [
     "context_provider.h",
     "gles2_context.h",
     "input_event_handler.h",
     "lib/command_buffer_client_impl.cc",
@@ skipping 45 matching lines @@
   ]
 
   deps = [
     "//gpu/command_buffer/client:gles2_cmd_helper",
     "//gpu/command_buffer/client:gles2_interface",
     "//gpu/ipc/client",
     "//services/shell/public/cpp",
     "//services/ui/gles2:lib",
     "//services/ui/public/interfaces",
     "//ui/display",
-    "//ui/display/mojo",
+    "//ui/display/mojo:type_converter",
     "//ui/events",
     "//ui/gfx/geometry",
   ]
 
   data_deps = [
     "//services/ui",
   ]
 }