Add service unittest for WakeLockServiceImpl.

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/catalog/public/tools/catalog.gni")
 import("//services/service_manager/public/cpp/service.gni")
 import("//services/service_manager/public/service_manifest.gni")
 
 if (is_android) {
@@ skipping 45 matching lines @@
 
 source_set("tests") {
   testonly = true
 
   sources = [
     "battery/battery_status_manager_win_unittest.cc",
     "battery/battery_status_service_unittest.cc",
     "power_monitor/power_monitor_message_broadcaster_unittest.cc",
     "public/cpp/power_monitor/power_monitor_broadcast_source_unittest.cc",
     "vibration/vibration_manager_impl_unittest.cc",
+    "wake_lock/wake_lock_service_impl_unittest.cc",
   ]
 
   deps = [
     ":test_support",
     "//base",
     "//base/test:test_support",
+    "//device/wake_lock",
     "//mojo/public/cpp/bindings",
     "//services/device/power_monitor",
     "//services/device/public/cpp/power_monitor",
     "//testing/gmock",
     "//testing/gtest",
   ]
 
   if (is_linux && !is_chromeos && use_dbus) {
     sources += [ "battery/battery_status_manager_linux_unittest.cc" ]
     deps += [ "//dbus:test_support" ]
@@ skipping 91 matching lines @@
       "//services/device/battery/android:battery_monitor_java",
       "//services/device/public/interfaces:interfaces_java",
       "//services/device/screen_orientation:java",
       "//services/device/time_zone_monitor:java",
       "//services/device/vibration/android:vibration_manager_java",
       "//services/service_manager/public/interfaces:interfaces_java",
       "//services/service_manager/public/java:service_manager_java",
     ]
   }
 }