[callback-invoked.html]
  expected:
    if (os == "android") and not fission: [OK, TIMEOUT]
    if (os == "android") and fission: [OK, TIMEOUT]
  [requestIdleCallback callback is invoked at least once before the timeout]
    expected:
      if os == "mac": [PASS, FAIL]
      if os == "android": [PASS, TIMEOUT]