<!DOCTYPE html>
<html>
<head>
    <style>
        div {
            position: relative;
            height: 100px;
            width: 100px;
        }
        .media-controls-dark {
            -webkit-appearance: media-controls-dark-bar-background;
        }
        .media-controls-light {
            -webkit-appearance: media-controls-light-bar-background;
        }
        .with-layer {
            -webkit-transform: translate3d(0, 0, 0);
        }
    </style>
    <script>
        if (window.testRunner)
            testRunner.dumpAsText();

        function dumpLayers()
        {
            var layersResult = document.getElementById('layers');
            if (window.testRunner)
                layersResult.innerText = window.internals.layerTreeAsText(document);

        }
        window.addEventListener('load', dumpLayers, false)
    </script>
</head>
<body>
    <p>These elements should not get their own layers.</p>
    <div class="media-controls-dark">
    </div>
    <div class="media-controls-light">
    </div>
    <p>These elements explicitly request layers.</p>
    <div class="media-controls-dark with-layer">
    </div>
    <div class="media-controls-light with-layer">
    </div>
<pre id="layers"></pre>
</body>
</html>