chromium/third_party/blink/web_tests/paint/invalidation/layer-visibility-expected.txt

{
  "layers": [
    {
      "name": "Scrolling background of LayoutView #document",
      "bounds": [800, 600],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF",
      "invalidations": [
        [100, 0, 100, 100],
        [0, 0, 100, 100]
      ]
    }
  ]
}