[mouseover-heuristics-background.tentative.html]
  expected:
    if (os == "linux") and not asan and debug and not fission: [ERROR, OK, TIMEOUT]
    if (os == "linux") and asan and fission: [ERROR, TIMEOUT, OK]
    if (os == "linux") and not asan and not debug: [ERROR, OK, TIMEOUT]
    [ERROR, OK]
  [LCP mouseover heuristics ignore background-based zoom widgets]
    expected:
      if os == "linux": [TIMEOUT, PASS]
      TIMEOUT