Revert of Wake Lock API implementation (Chromium part)

content/content_browser.gypi

 # Copyright (c) 2012 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.
 
 {
   'dependencies': [
     '../base/base.gyp:base_static',
     '../components/url_formatter/url_formatter.gyp:url_formatter',
     '../crypto/crypto.gyp:crypto',
     '../device/battery/battery.gyp:device_battery',
@@ skipping 1514 matching lines @@
       'browser/tracing/tracing_controller_impl.cc',
       'browser/tracing/tracing_controller_impl.h',
       'browser/tracing/tracing_controller_impl_data_sinks.cc',
       'browser/tracing/tracing_ui.cc',
       'browser/tracing/tracing_ui.h',
       'browser/udev_linux.cc',
       'browser/udev_linux.h',
       'browser/user_metrics.cc',
       'browser/utility_process_host_impl.cc',
       'browser/utility_process_host_impl.h',
-      'browser/wake_lock/wake_lock_service_context.cc',
-      'browser/wake_lock/wake_lock_service_context.h',
-      'browser/wake_lock/wake_lock_service_impl.cc',
-      'browser/wake_lock/wake_lock_service_impl.h',
       'browser/web_contents/aura/gesture_nav_simple.cc',
       'browser/web_contents/aura/gesture_nav_simple.h',
       'browser/web_contents/aura/overscroll_navigation_overlay.cc',
       'browser/web_contents/aura/overscroll_navigation_overlay.h',
       'browser/web_contents/aura/overscroll_window_animation.cc',
       'browser/web_contents/aura/overscroll_window_animation.h',
       'browser/web_contents/aura/overscroll_window_delegate.cc',
       'browser/web_contents/aura/overscroll_window_delegate.h',
       'browser/web_contents/aura/shadow_layer_delegate.cc',
       'browser/web_contents/aura/shadow_layer_delegate.h',
@@ skipping 622 matching lines @@
     ['enable_webvr==1 and OS=="android"', {
       'sources': [
         'browser/vr/android/cardboard/cardboard_vr_device.cc',
         'browser/vr/android/cardboard/cardboard_vr_device.h',
         'browser/vr/android/cardboard/cardboard_vr_device_provider.cc',
         'browser/vr/android/cardboard/cardboard_vr_device_provider.h',
       ],
     }],
   ],
 }