This test checks that changing the transform on an element triggers a correct invalidation.
The paint invalidations below should match the transformed element's coordinates.
Tested locations: 1200,1500
{
  "layers": [
    {
      "name": "Scrolling background of LayoutView #document",
      "bounds": [1600, 585],
      "contentsOpaque": true,
      "backgroundColor": "#FFFFFF",
      "invalidations": [
        [1300, 0, 300, 585],
        [1000, 0, 300, 585],
        [900, 0, 100, 100]
      ]
    },
    {
      "name": "HorizontalScrollbar",
      "position": [0, 585],
      "bounds": [800, 15],
      "contentsOpaque": true
    }
  ]
}