Pass device scale factor from display to ws.

services/ui/ws/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/ui.gni")
 import("//testing/test.gni")
 import("//services/shell/public/cpp/service.gni")
 import("//services/shell/public/service_manifest.gni")
 
 static_library("lib") {
@@ skipping 63 matching lines @@
     "touch_controller.h",
     "user_activity_monitor.cc",
     "user_activity_monitor.h",
     "user_display_manager.cc",
     "user_display_manager.h",
     "user_display_manager_delegate.h",
     "user_id.h",
     "user_id_tracker.cc",
     "user_id_tracker.h",
     "user_id_tracker_observer.h",
+    "viewport_metrics.h",
     "window_coordinate_conversions.cc",
     "window_coordinate_conversions.h",
     "window_finder.cc",
     "window_finder.h",
     "window_manager_access_policy.cc",
     "window_manager_access_policy.h",
     "window_manager_display_root.cc",
     "window_manager_display_root.h",
     "window_manager_state.cc",
     "window_manager_state.h",
@@ skipping 165 matching lines @@
 
   data_deps = [
     ":mus_ws_unittests_app_manifest",
   ]
 }
 
 service_manifest("mus_ws_unittests_app_manifest") {
   name = "mus_ws_unittests_app"
   source = "mus_ws_unittests_app_manifest.json"
 }