RTCCertificate and RTCPeerConnection.generateCertificate added to JavaScript

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 104 matching lines @@
       'mediastream/MediaDeviceInfo.idl',
       'mediastream/MediaDevices.idl',
       'mediastream/MediaStream.idl',
       'mediastream/MediaStreamEvent.idl',
       'mediastream/MediaStreamTrack.idl',
       'mediastream/MediaStreamTrackEvent.idl',
       'mediastream/MediaStreamTrackSourcesCallback.idl',
       'mediastream/NavigatorUserMediaError.idl',
       'mediastream/NavigatorUserMediaErrorCallback.idl',
       'mediastream/NavigatorUserMediaSuccessCallback.idl',
+      'mediastream/RTCCertificate.idl',
       'mediastream/RTCDTMFSender.idl',
       'mediastream/RTCDTMFToneChangeEvent.idl',
       'mediastream/RTCDataChannel.idl',
       'mediastream/RTCDataChannelEvent.idl',
       'mediastream/RTCErrorCallback.idl',
       'mediastream/RTCIceCandidate.idl',
       'mediastream/RTCIceCandidateEvent.idl',
       'mediastream/RTCPeerConnection.idl',
       'mediastream/RTCSessionDescription.idl',
       'mediastream/RTCSessionDescriptionCallback.idl',
@@ skipping 986 matching lines @@
       'mediastream/MediaStreamTrackSourcesRequestImpl.cpp',
       'mediastream/MediaStreamTrackSourcesRequestImpl.h',
       'mediastream/NavigatorMediaStream.cpp',
       'mediastream/NavigatorMediaStream.h',
       'mediastream/NavigatorUserMedia.cpp',
       'mediastream/NavigatorUserMedia.h',
       'mediastream/NavigatorUserMediaError.cpp',
       'mediastream/NavigatorUserMediaError.h',
       'mediastream/NavigatorUserMediaErrorCallback.h',
       'mediastream/NavigatorUserMediaSuccessCallback.h',
+      'mediastream/RTCCertificate.cpp',
+      'mediastream/RTCCertificate.h',
       'mediastream/RTCDTMFSender.cpp',
       'mediastream/RTCDTMFSender.h',
       'mediastream/RTCDTMFToneChangeEvent.cpp',
       'mediastream/RTCDTMFToneChangeEvent.h',
       'mediastream/RTCDataChannel.cpp',
       'mediastream/RTCDataChannel.h',
       'mediastream/RTCDataChannelEvent.cpp',
       'mediastream/RTCDataChannelEvent.h',
       'mediastream/RTCErrorCallback.h',
       'mediastream/RTCIceCandidate.cpp',
@@ skipping 659 matching lines @@
       'webaudio/AudioBasicProcessorHandlerTest.cpp',
       'webaudio/ConvolverNodeTest.cpp',
       'webaudio/DynamicsCompressorNodeTest.cpp',
       'webaudio/ScriptProcessorNodeTest.cpp',
       'webaudio/StereoPannerNodeTest.cpp',
       'websockets/DOMWebSocketTest.cpp',
       'websockets/DocumentWebSocketChannelTest.cpp',
     ],
   },
 }