[SourceBuffer-abort-removed.html]
  type: testharness
  prefs: [media.mediasource.enabled:true]
  [SourceBuffer#abort (video/mp4) : if this object has been removed from the sourceBuffers attribute of the parent media source, then throw an INVALID_STATE_ERR exception and abort these steps.]
    expected:
      if (os == "win") and (version == "5.1.2600"): FAIL