Test CSS clip with composited layers. Left and right sides should look the same.

{
  "layers": [
    {
      "name": "Scrolling background of LayoutView #document",
      "bounds": [1200, 900],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF"
    },
    {
      "name": "LayoutBlockFlow (positioned) DIV class='composited box'",
      "position": [-7, -7],
      "bounds": [165, 165],
      "backgroundColor": "#666666",
      "transform": 2
    },
    {
      "name": "LayoutBlockFlow (relative positioned) DIV class='composited inner'",
      "bounds": [180, 180],
      "backgroundColor": "#00000033",
      "transform": 4
    }
  ],
  "transforms": [
    {
      "id": 1,
      "transform": [
        [1, 0, 0, 0],
        [0, 1, 0, 0],
        [0, 0, 1, 0],
        [30, 30, 0, 1]
      ]
    },
    {
      "id": 2,
      "parent": 1,
      "transform": [
        [1, 0, 0, 0],
        [0, 1, 0, 0],
        [0, 0, 1, 0],
        [0, 0, 1.5, 1]
      ]
    },
    {
      "id": 3,
      "transform": [
        [1, 0, 0, 0],
        [0, 1, 0, 0],
        [0, 0, 1, 0],
        [315, 15, 0, 1]
      ]
    },
    {
      "id": 4,
      "parent": 3,
      "transform": [
        [1, 0, 0, 0],
        [0, 1, 0, 0],
        [0, 0, 1, 0],
        [0, 0, 1.5, 1]
      ]
    }
  ]
}