chromium/third_party/blink/web_tests/paint/invalidation/clip/subtree-root-clip.html

<!DOCTYPE HTML>
<html>
<head>
    <script src="../resources/text-based-repaint.js"></script>
    <script>
        function repaintTest()
        {
            document.getElementById("inner").style.width = "0";
        }
    </script>
</head>
<body onload="runRepaintAndPixelTest()">
<div style="float: left; overflow: hidden; width: 100px; height: 100px; background-color: green;">
    <div id="inner" style="width: 100px; height: 100px; background-color: red;"></div>
</div>
</body>
</html>