chromium/third_party/blink/web_tests/platform/mac/paint/invalidation/multi-layout-one-frame-expected.txt

{
  "layers": [
    {
      "name": "Scrolling background of LayoutView #document",
      "bounds": [800, 600],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF",
      "invalidations": [
        [169, 11, 54, 15],
        [12, 11, 54, 15],
        [161, 9, 4, 18]
      ]
    }
  ]
}