Refactored VRService interaction and added VRServiceClient

third_party/WebKit/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 1606 matching lines @@
       'vibration/VibrationController.cpp',
       'vibration/VibrationController.h',
       'vr/NavigatorVR.cpp',
       'vr/NavigatorVR.h',
       'vr/VRController.cpp',
       'vr/VRController.h',
       'vr/VRDisplay.cpp',
       'vr/VRDisplay.h',
       'vr/VRDisplayCapabilities.cpp',
       'vr/VRDisplayCapabilities.h',
-      'vr/VRDisplayCollection.cpp',
-      'vr/VRDisplayCollection.h',
       'vr/VREyeParameters.cpp',
       'vr/VREyeParameters.h',
       'vr/VRFieldOfView.h',
       'vr/VRGetDevicesCallback.cpp',
       'vr/VRGetDevicesCallback.h',
       'vr/VRPose.cpp',
       'vr/VRPose.h',
       'vr/VRStageParameters.cpp',
       'vr/VRStageParameters.h',
       'wake_lock/ScreenWakeLock.cpp',
@@ skipping 421 matching lines @@
       'webaudio/ConvolverNodeTest.cpp',
       'webaudio/DynamicsCompressorNodeTest.cpp',
       'webaudio/ScriptProcessorNodeTest.cpp',
       'webaudio/StereoPannerNodeTest.cpp',
       'webdatabase/QuotaTrackerTest.cpp',
       'websockets/DOMWebSocketTest.cpp',
       'websockets/DocumentWebSocketChannelTest.cpp',
     ],
   },
 }