[2d.layer.malformed-operations.html]
  [Throws if createPattern is called while layers are open.]
    expected: FAIL

  [Throws if drawImage is called while layers are open.]
    expected: FAIL

  [Throws if getImageData is called while layers are open.]
    expected: FAIL

  [Throws if putImageData is called while layers are open.]
    expected: FAIL

  [Throws if toDataURL is called while layers are open.]
    expected: FAIL