{
  "layers": [
    {
      "name": "Scrolling background of LayoutView #document",
      "bounds": [800, 600],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF"
    },
    {
      "name": "LayoutBlockFlow (positioned, relayout-boundary) DIV id='scroller'",
      "bounds": [300, 400],
      "drawsContent": false,
      "transform": 1
    },
    {
      "name": "LayoutBlockFlow (positioned, relayout-boundary) DIV id='scroller'",
      "bounds": [285, 385],
      "drawsContent": false,
      "transform": 1
    },
    {
      "name": "HorizontalScrollbar",
      "position": [0, 385],
      "bounds": [300, 15],
      "contentsOpaqueForText": true,
      "transform": 1
    },
    {
      "name": "VerticalScrollbar",
      "position": [285, 0],
      "bounds": [15, 385],
      "contentsOpaque": true,
      "transform": 1
    },
    {
      "name": "LayoutBlockFlow (positioned, relayout-boundary) DIV id='scroller'",
      "bounds": [285, 900],
      "invalidations": [
        [50, 310, 200, 50],
        [50, 200, 200, 50]
      ],
      "transform": 2
    }
  ],
  "transforms": [
    {
      "id": 1,
      "transform": [
        [1, 0, 0, 0],
        [0, 1, 0, 0],
        [0, 0, 1, 0],
        [10, 60, 0, 1]
      ]
    },
    {
      "id": 2,
      "parent": 1,
      "transform": [
        [1, 0, 0, 0],
        [0, 1, 0, 0],
        [0, 0, 1, 0],
        [0, -150, 0, 1]
      ]
    }
  ]
}