chromium/third_party/blink/web_tests/compositing/layer-creation/overlap-animation-expected.txt

{
  "layers": [
    {
      "name": "Scrolling background of LayoutView #document",
      "bounds": [800, 600],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF"
    },
    {
      "name": "LayoutBlockFlow (relative positioned) DIV id='to-animate' class='animating box'",
      "bounds": [100, 100],
      "contentsOpaque": true,
      "backgroundColor": "#0000FF",
      "transform": 2
    },
    {
      "name": "LayoutBlockFlow (relative positioned) DIV class='box'",
      "position": [18, 129],
      "bounds": [101, 231]
    }
  ],
  "transforms": [
    {
      "id": 1,
      "transform": [
        [...],
        [...],
        [...],
        [...]
      ]
    },
    {
      "id": 2,
      "parent": 1,
      "transform": [
        [...],
        [...],
        [...],
        [...]
      ],
      "origin": [50, 50]
    }
  ]
}