LayoutTests/css3/filters/backdrop/backdrop-with-visibility-hidden-expected.txt

(GraphicsLayer
  (anchor 0.00 0.00)
  (bounds 800.00 600.00)
  (children 1
    (GraphicsLayer
      (bounds 800.00 600.00)
      (contentsOpaque 1)
      (children 1
        (GraphicsLayer
          (position 0.00 150.00)
          (bounds 402.00 52.00)
          (contentsVisible 0)
          (structural layer 201.00, 176.00 402.00 x 52.00)
          (backdrop layer 0.00, 0.00 402.00 x 52.00 hidden)
        )
      )
    )
  )
)