[RTCTrackEvent-fire.html]
  prefs: [media.peerconnection.sdp.alternate_parse_mode:never, media.peerconnection.sdp.parser:sipcc]
  expected:
    if sessionHistoryInParent and (os == "android") and not debug: [OK, TIMEOUT]
    if not sessionHistoryInParent and not debug: [OK, TIMEOUT]
    if sessionHistoryInParent and (os == "android") and debug: [OK, TIMEOUT]
    if (os == "android") and debug and not sessionHistoryInParent: [OK, TIMEOUT]