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chromium/third_party/blink/web_tests/compositing/geometry/vertical-scroll-composited.html 

<html>
<head>
    <title>Vertical scroll test for composited elements</title>
    <script type="text/javascript" charset="utf-8">
    if (window.testRunner)
        testRunner.waitUntilDone();
    </script>
    <style>
    ::-webkit-scrollbar {
      width: 0px;
      height: 0px;
    }
    </style>
</head>
<body style="height: 600px">
<div style="transform: rotate3d(0,0,1,20deg); will-change: transform; width: 800px; height: 1000px; border-style: solid; border-color: Red; border-width: 3px; background-image: url(../resources/apple.jpg); background-repeat:repeat"></div>
<script type="text/javascript" charset="utf-8">
      window.scrollBy(0, 200);
      if (window.testRunner)
        testRunner.notifyDone();
</script>
</body>
</html>