Wake Lock API implementation (Blink part)

Source/modules/modules.gypi

 {
   'includes': [
     '../core/core_generated.gypi',
     'modules_generated.gypi',
   ],
   'variables': {
     # Experimental hooks for embedder to provide extra IDL and source files.
     #
     # Note: this is not a supported API. If you rely on this, you will be broken
     # from time to time as the code generator changes in backward incompatible
@@ skipping 289 matching lines @@
       'quota/NavigatorStorageQuota.idl',
       'quota/WindowQuota.idl',
       'quota/WorkerNavigatorStorageQuota.idl',
       'screen_orientation/ScreenScreenOrientation.idl',
       'serviceworkers/NavigatorServiceWorker.idl',
       'speech/WindowSpeech.idl',
       'speech/WindowSpeechSynthesis.idl',
       'storage/WindowStorage.idl',
       'vibration/NavigatorVibration.idl',
       'vr/NavigatorVRDevice.idl',
+      'wake_lock/ScreenWakeLock.idl',
       'webaudio/WindowWebAudio.idl',
       'webdatabase/WindowWebDatabase.idl',
       'webmidi/NavigatorWebMIDI.idl',
     ],
     # interfaces that inherit from Event
     'modules_event_idl_files': [
       'app_banner/BeforeInstallPromptEvent.idl',
       'background_sync/PeriodicSyncEvent.idl',
       'background_sync/SyncEvent.idl',
       'device_light/DeviceLightEvent.idl',
@@ skipping 932 matching lines @@
       'vr/VREyeParameters.h',
       'vr/VRFieldOfView.h',
       'vr/VRGetDevicesCallback.cpp',
       'vr/VRGetDevicesCallback.h',
       'vr/VRHardwareUnit.cpp',
       'vr/VRHardwareUnit.h',
       'vr/VRHardwareUnitCollection.cpp',
       'vr/VRHardwareUnitCollection.h',
       'vr/VRPositionState.cpp',
       'vr/VRPositionState.h',
+      'wake_lock/ScreenWakeLock.cpp',
+      'wake_lock/ScreenWakeLock.h',
       'webaudio/AnalyserNode.cpp',
       'webaudio/AnalyserNode.h',
       'webaudio/AsyncAudioDecoder.cpp',
       'webaudio/AsyncAudioDecoder.h',
       'webaudio/AudioBasicInspectorNode.cpp',
       'webaudio/AudioBasicInspectorNode.h',
       'webaudio/AudioBasicProcessorHandler.cpp',
       'webaudio/AudioBasicProcessorHandler.h',
       'webaudio/AudioBuffer.cpp',
       'webaudio/AudioBuffer.h',
@@ skipping 237 matching lines @@
       'webaudio/AudioBasicProcessorHandlerTest.cpp',
       'webaudio/ConvolverNodeTest.cpp',
       'webaudio/DynamicsCompressorNodeTest.cpp',
       'webaudio/ScriptProcessorNodeTest.cpp',
       'webaudio/StereoPannerNodeTest.cpp',
       'websockets/DOMWebSocketTest.cpp',
       'websockets/DocumentWebSocketChannelTest.cpp',
     ],
   },
 }