LayoutTests/compositing/backing/masked-child-no-backing-expected.txt

(GraphicsLayer
  (anchor 0.00 0.00)
  (bounds 800.00 600.00)
  (children 1
    (GraphicsLayer
      (bounds 800.00 600.00)
      (contentsOpaque 1)
      (children 2
        (GraphicsLayer
          (position 18.00 10.00)
          (bounds 200.00 200.00)
        )
        (GraphicsLayer
          (position 18.00 220.00)
          (bounds 200.00 200.00)
          (drawsContent 1)
        )
      )
    )
  )
)