<html>
<head>
  <style type="text/css" media="screen">
    .box {
      position: absolute;
      width: 100px;
      height: 100px;
      top: 20px;
      left: 20px;
      background-color: gray;
      border-radius: 30%;
      overflow: hidden;
      z-index: 0;
    }

    .inner {
      width: 200px;
      height: 200px;
      background-color: rgba(0, 0, 0, 0.2);
    }

    .composited {
      -webkit-transform: translateZ(1px);
    }

    p {
      margin-top: 140px;
    }
  </style>
  <script type="text/javascript" charset="utf-8">
    if (window.testRunner) {
      testRunner.dumpAsText();
      testRunner.waitUntilDone();
    }

    function doTest() {
      if (window.testRunner) {
        document.getElementById('layers').innerText = window.internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_CLIPPING);
        testRunner.notifyDone();
      }
    }
    window.addEventListener('load', doTest, false);
  </script>
</head>
<body>
  <div class="box">
    <div class="composited inner">
    </div>
  </div>

  <div class="box" style="left: 220px;">
    <div class="inner">
    </div>
  </div>

  <p>Test CSS clip with composited layers. Left and right sides should look the same. This test should not ASSERT in debug builds.</p>
  <pre id="layers">In DRT, layer tree goes here.</pre>
</body>
</html>