[fedcm-button-mode-basics.tentative.https.html]
  expected:
    if (os == "win") and not debug and (processor == "x86_64"): [ERROR, OK, PASS, FAIL]
    if (os == "win") and not debug and (processor == "x86"): [TIMEOUT, OK, PASS, FAIL, ERROR]
    [OK, PASS, FAIL, ERROR]
  [Test that the mediation:silent is not supported in active mode.]
    expected:
      if (processor == "x86") and not debug: TIMEOUT
      FAIL

  [Test that the active mode succeeds with user activation.]
    expected: FAIL