[RTCRtpScriptTransform-sender-worker-single-frame.https.html]
  expected:
    if (os == "linux") and not debug and not asan and not tsan: [OK, TIMEOUT]
    if (os == "android") and sessionHistoryInParent and not debug: [OK, TIMEOUT]
    if (os == "mac") and debug: [OK, TIMEOUT]
    if (os == "mac") and not debug: [OK, TIMEOUT]
  [RTCRtpSender initializes its transform attribute and the Worker sends an RTCEncodedAudioFrame back]
    expected:
      if (os == "linux") and not debug and not asan and not tsan: [PASS, TIMEOUT]
      if (os == "mac") and not debug: [PASS, TIMEOUT]

  [RTCRtpSender initializes its transform attribute and the Worker sends an RTCEncodedVideoFrame back]
    expected:
      if (os == "linux") and not debug and not asan and not tsan: [PASS, NOTRUN]
      if (os == "mac") and not debug: [PASS, TIMEOUT, NOTRUN]