Ports VRService to be hosted in the device service.

services/device/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/features.gni")
 import("//services/service_manager/public/cpp/service.gni")
 import("//services/service_manager/public/service_manifest.gni")
 
 source_set("lib") {
   sources = [
     "device_service.cc",
     "device_service.h",
   ]
 
   deps = [
     "//base",
     "//device/power_monitor",
     "//device/time_zone_monitor",
     "//services/service_manager/public/cpp",
   ]
 
+  if (enable_webvr) {
+    deps += [ "//device/vr" ]
+  } else {
+    deps += [ "//device/vr:mojo_bindings" ]
+  }
+
   public_deps = [
     # TODO(blundell): This dep shouldn't be necessary at all,
     # but content_shell fails to link in the component build if
     # this isn't here as a public_dep.
     "//device/time_zone_monitor/public/interfaces",
   ]
 
   data_deps = [
     ":manifest",
   ]
 }
 
 service_manifest("manifest") {
   name = "device"
   source = "manifest.json"
 }