bug: https://bugzilla.mozilla.org/show_bug.cgi?id=2049903
prefs: [media.mediasource.vp9.enabled:true, media.mediacapabilities.codec-support-cache.enabled:false]
[decodingInfo-codec-without-profile.any.html]
  [file: profile-less 'avc1' matches its qualified form]
    expected: FAIL

  [media-source: profile-less 'avc1' matches its qualified form]
    expected: FAIL


[decodingInfo-codec-without-profile.any.worker.html]
  [file: profile-less 'avc1' matches its qualified form]
    expected: FAIL

  [media-source: profile-less 'avc1' matches its qualified form]
    expected: FAIL