{
  "name": "Content Root Layer",
  "bounds": [800, 600],
  "children": [
    {
      "name": "LayoutView #document",
      "bounds": [800, 600],
      "contentsOpaque": true,
      "drawsContent": true,
      "paintInvalidations": [
        {
          "object": "LayoutBlockFlow (positioned) DIV id='scroller'",
          "rect": [300, 300, 200, 200],
          "reason": "subtree"
        },
        {
          "object": "LayoutBlockFlow DIV",
          "rect": [300, 300, 185, 200],
          "reason": "subtree"
        },
        {
          "object": "LayoutBlockFlow DIV id='target'",
          "rect": [300, 350, 100, 100],
          "reason": "subtree"
        },
        {
          "object": "LayoutBlockFlow (positioned) DIV id='scroller'",
          "rect": [485, 300, 15, 200],
          "reason": "scroll"
        },
        {
          "object": "LayoutBlockFlow DIV class='spacer'",
          "rect": [300, 300, 1, 200],
          "reason": "subtree"
        },
        {
          "object": "LayoutBlockFlow DIV class='spacer'",
          "rect": [300, 450, 1, 50],
          "reason": "subtree"
        }
      ]
    }
  ],
  "objectPaintInvalidations": [
    {
      "object": "LayoutBlockFlow (positioned) DIV id='scroller'",
      "reason": "subtree"
    },
    {
      "object": "VerticalScrollbar",
      "reason": "scroll"
    },
    {
      "object": "LayoutBlockFlow DIV",
      "reason": "subtree"
    },
    {
      "object": "LayoutBlockFlow DIV class='spacer'",
      "reason": "subtree"
    },
    {
      "object": "LayoutBlockFlow DIV id='target'",
      "reason": "subtree"
    },
    {
      "object": "LayoutBlockFlow DIV class='spacer'",
      "reason": "subtree"
    }
  ]
}

