{
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    {
      "name": "LayoutView #document",
      "bounds": [800, 600],
      "backgroundColor": "#FFFFFF"
    },
    {
      "name": "Scrolling Layer",
      "bounds": [800, 600],
      "drawsContent": false
    },
    {
      "name": "Scrolling Contents Layer",
      "bounds": [800, 600],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF",
      "paintInvalidations": [
        {
          "object": "LayoutBlockFlow DIV id='target'",
          "rect": [8, 8, 200, 100],
          "reason": "geometry"
        }
      ]
    }
  ],
  "objectPaintInvalidations": [
    {
      "object": "LayoutBlockFlow DIV id='target'",
      "reason": "geometry"
    }
  ]
}

