Fixed Chrome OS component GN build.

ui/chromeos/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("//testing/test.gni")
 
 component("ui_chromeos") {
   sources = [
     "accelerometer/accelerometer_util.cc",
     "accelerometer/accelerometer_util.h",
@@ skipping 28 matching lines @@
     "touch_exploration_controller.h",
     "user_activity_power_manager_notifier.cc",
     "user_activity_power_manager_notifier.h",
   ]
   defines = [ "UI_CHROMEOS_IMPLEMENTATION" ]
   deps = [
     "//base",
     "//base/third_party/dynamic_annotations",
     "//chromeos:chromeos",
     "//chromeos:power_manager_proto",
+    "//components/device_event_log",
     "//skia",
     "//ui/aura",
     "//ui/base",
     "//ui/base/ime",
     "//ui/chromeos/resources",
     "//ui/chromeos/strings",
     "//ui/events",
     "//ui/events:gesture_detection",
     "//ui/gfx",
     "//ui/gfx/geometry",
@@ skipping 23 matching lines @@
     "//ui/aura:test_support",
     "//ui/compositor",
     "//ui/events:test_support",
     "//ui/gl",
     "//ui/message_center",
     "//ui/resources:ui_test_pak",
     "//ui/views",
     "//ui/views:test_support",
   ]
 }