LayoutTests/compositing/repaint/fixed-background-scroll-expected.txt

(GraphicsLayer
  (anchor 0.00 0.00)
  (bounds 785.00 2021.00)
  (children 1
    (GraphicsLayer
      (bounds 785.00 2021.00)
      (contentsOpaque 1)
      (children 1
        (GraphicsLayer
          (position -4.00 96.00)
          (bounds 428.00 428.00)
          (drawsContent 1)
          (repaint rects
            (rect 0.00 0.00 428.00 428.00)
          )
        )
      )
    )
  )
)