[1:1:0207/144918.670801:ERROR:GraphicsLayer.cpp(337)] Painted GraphicsLayer: "Scrolling Contents Layer" interest_rect="0,0 1100x585"
[1:1:0207/144918.671198:ERROR:PaintController.cpp(672)] PaintController::CommitNewDisplayItems() done
[1:1:0207/144918.671447:ERROR:PaintControllerDebugData.cpp(154)] current display item list: [
  {
    "index": 0,
    "clientDebugName": "Scrolling Contents Layer",
    "id": "0x12c7aa1098d8:BeginTransform:0",
    "visualRect": "-300,0 1100x585",
    "transform": "translation(300,0)"
  },
  {
    "index": 1,
    "clientDebugName": "Scrolling Contents Layer",
    "id": "0x12c7aa1098d8:DrawingDocumentBackground:0",
    "visualRect": "-300,0 1100x585",
    "opaque": false,
    "record": [
      {
        "method": "drawRect",
        "params": {
          "rect": {
            "left": -300,
            "top": 0,
            "right": 800,
            "bottom": 585
          },
          "paint": {
            "textSize": 12,
            "textScaleX": 1,
            "textSkewX": 0,
            "color": "#FFFFFFFF",
            "strokeWidth": 0,
            "strokeMiter": 4,
            "flags": "AntiAlias",
            "filterLevel": "Low",
            "textAlign": "Left",
            "strokeCap": "Butt",
            "strokeJoin": "Miter",
            "styleName": "Fill",
            "textEncoding": "UTF-8",
            "hinting": "Normal",
            "blendMode": "Src"
          }
        }
      },
      {
        "method": "save"
      },
      {
        "method": "translate",
        "params": {
          "dx": -300,
          "dy": 0
        }
      },
      {
        "method": "restore"
      }
    ]
  },
  {
    "index": 2,
    "clientDebugName": "Scrolling Contents Layer",
    "id": "0x12c7aa1098d8:EndTransform:0",
    "visualRect": "-300,0 1100x585"
  }
]

[1:1:0207/144918.673788:ERROR:PaintControllerDebugData.cpp(163)] new display item list: []

[1:1:0207/144918.676442:ERROR:GraphicsLayer.cpp(302)] After GraphicsLayer::PaintRecursively()
GraphicsLayer tree:
{
  "this": "0x12c7aa109450",
  "name": "LayoutView #document",
  "bounds": [800, 600],
  "client": "0x12c7aa190370",
  "backgroundColor": "#FFFFFF",
  "shouldFlattenTransform": false,
  "paintingPhases": [
    "GraphicsLayerPaintBackground",
    "GraphicsLayerPaintMask",
    "GraphicsLayerPaintCompositedScroll",
    "GraphicsLayerPaintDecoration"
  ],
  "compositingReasons": [
    "Is a scrollable overflow element",
    "Is the document.rootScroller",
    "Is the root layer"
  ],
  "squashingDisallowedReasons": [],
  "paintRecord": [],
  "children": [
    {
      "this": "0x12c7aa109f90",
      "name": "Scrolling Layer",
      "bounds": [800, 585],
      "drawsContent": false,
      "client": "0x12c7aa190370",
      "flattenInheritedTransform": false,
      "shouldFlattenTransform": false,
      "paintingPhases": [
        "GraphicsLayerPaintBackground",
        "GraphicsLayerPaintForeground",
        "GraphicsLayerPaintMask",
        "GraphicsLayerPaintDecoration"
      ],
      "compositingReasons": [
        "Secondary layer, used to position the scrolling contents while scrolling"
      ],
      "squashingDisallowedReasons": [],
      "children": [
        {
          "this": "0x12c7aa1098d0",
          "name": "Scrolling Contents Layer",
          "offsetFromLayoutObject": [-300, 0],
          "bounds": [1100, 585],
          "contentsOpaque": true,
          "client": "0x12c7aa190370",
          "backgroundColor": "#FFFFFF",
          "flattenInheritedTransform": false,
          "scrollPosition": [300, 0],
          "paintingPhases": [
            "GraphicsLayerPaintForeground",
            "GraphicsLayerPaintOverflowContents",
            "GraphicsLayerPaintCompositedScroll"
          ],
          "compositingReasons": [
            "Secondary layer, to house contents that can be scrolled"
          ],
          "squashingDisallowedReasons": [],
          "paintRecord": [
            {
              "method": "save"
            },
            {
              "method": "translate",
              "params": {
                "dx": 300,
                "dy": 0
              }
            },
            {
              "method": "drawRect",
              "params": {
                "rect": {
                  "left": -300,
                  "top": 0,
                  "right": 800,
                  "bottom": 585
                },
                "paint": {
                  "textSize": 12,
                  "textScaleX": 1,
                  "textSkewX": 0,
                  "color": "#FFFFFFFF",
                  "strokeWidth": 0,
                  "strokeMiter": 4,
                  "flags": "AntiAlias",
                  "filterLevel": "Low",
                  "textAlign": "Left",
                  "strokeCap": "Butt",
                  "strokeJoin": "Miter",
                  "styleName": "Fill",
                  "textEncoding": "UTF-8",
                  "hinting": "Normal",
                  "blendMode": "Src"
                }
              }
            },
            {
              "method": "save"
            },
            {
              "method": "translate",
              "params": {
                "dx": -300,
                "dy": 0
              }
            },
            {
              "method": "restore"
            },
            {
              "method": "restore"
            }
          ]
        }
      ]
    }
  ]
}