<!DOCTYPE html>
<html>
<head>
  <style type="text/css" media="screen">
    embed {
      width: 300px;
      height: 150px;
      border: 1px solid black;
    }

    embed.small {
      height: 1px;
      width: 1px;
    }

    .container {
      height: 100px;
      width: 200px;
      overflow: hidden;
    }
  </style>
  <script type="text/javascript" charset="utf-8">
    if (window.testRunner) {
        testRunner.dumpAsText();
        testRunner.waitUntilDone();
    }

    function doTest()
    {
        window.setTimeout(function() {
          document.getElementById('plugin').className = 'small';
          // Need to wait for compositing layers to be updated.
          window.setTimeout(function() {
              if (window.testRunner) {
                  var layers = window.internals.layerTreeAsText(document);
                  var result;
                  if (layers == "")
                    result = "PASS: no layers found";
                  else
                    result = "FAIL: found layers " + layers;
                  document.getElementById('result').innerHTML = result;
                  testRunner.notifyDone();
              }
          }, 0);
        }, 0);
    }

    window.addEventListener('load', doTest, false);
  </script>
</head>
<body>
  
  <div class="container">
    <embed id="plugin" type="application/x-webkit-test-netscape" width="1" height="1" drawingmodel="coreanimation">
  </div>

  <div id="result">Test only works in DRT</div>
</body>
</html>