[object-fit-contain-png-001c.html]
  bug: https://bugzilla.mozilla.org/show_bug.cgi?id=856337
  fuzzy:
    if webrender: maxDifference=26;totalPixels=155
    if not webrender and (os != "android"): maxDifference=26;totalPixels=1219
    if not webrender and (os == "android"): maxDifference=142;totalPixels=1771
