[sandbox-top-navigation-grandchild-frame-allow-top.tentative.sub.window.html]
  expected:
    if (os == "linux") and fission and debug and swgl: [TIMEOUT, OK]
    if (os == "linux") and fission and debug and not swgl: [OK, TIMEOUT]
    if (os == "linux") and fission and not debug: [OK, TIMEOUT]
    if (os == "linux") and not fission and debug and not swgl: [OK, CRASH]
  [A same-origin grandchild with frame allow-top can navigate top]
    expected:
      if (os == "linux") and fission and debug and swgl: [TIMEOUT, PASS]
      if (os == "linux") and fission and debug and not swgl: [PASS, TIMEOUT]
      if (os == "linux") and fission and not debug: [PASS, TIMEOUT]