[MediaStreamTrack-applyConstraints.https.html]
  prefs: [media.getusermedia.camera.fake.force:true, media.navigator.streams.fake:false, media.navigator.video.resize_mode.enabled:true]
  expected:
    if (os == "mac") and not debug: [OK, ERROR]
  [applyConstraints rejects long string ideal groupID]
    expected: FAIL