chromium/third_party/blink/web_tests/scrollbars/short-scrollbar.html

<!DOCTYPE html>
<html>
<body>
<!-- On platforms with no scrollbar button images we should draw the native scrollbar track even when the scrollbar is very short. This condition is currently only relevant on linux chromiumos which is untested on the webkit tree but this test can be run manually. -->
<div style="width:200px; height:20px; overflow:auto">
<div style="height:200px;"></div>
</div>
</body>
</html>