addIceCandidate method

Future addIceCandidate (Object candidate, [ VoidCallback successCallback, RtcPeerConnectionErrorCallback failureCallback ])

Implementation 

Future addIceCandidate(Object candidate,
        [VoidCallback successCallback,
        RtcPeerConnectionErrorCallback failureCallback]) =>
    promiseToFuture(JS("", "#.addIceCandidate(#, #, #)", this, candidate,
        successCallback, failureCallback));