chromium/third_party/blink/web_tests/compositing/geometry/empty-embed-rects.html

<!DOCTYPE html>

<html>
<head>
    <script type="text/javascript" charset="utf-8">
        if (window.testRunner)
            testRunner.dumpAsText();
    </script>
</head>
<body>
    <p>This testcase should not fire an assertion related to the clip rects root.</p>
    <div style="position: absolute;">
        <embed type="application/x-shockwave-flash">
    </div>      
    <div style="position: relative;">
        <div style="position: absolute;"></div>
        <embed type="application/x-shockwave-flash">
    </div>
</body>
</html>