scroll-with-inner-clip-expected.html

<!doctype HTML>

<script>
if (window.internals)
  internals.settings.setPreferCompositingToLCDTextEnabled(true);
</script>

<style>
body {
  background-color: pink;
}

#container {
  height: 500px;
  width: 250px;
  overflow: scroll;
  border-radius: 30px 30px 30px 30px;
  background-color: blue;
  border: 10px solid black;
}
#container::-webkit-scrollbar {
  display: none;
}
</style>

<div id="container">
  <div style="width:200px; height:800px; background-color:lightgreen"></div>
</div>

<script>
document.getElementById("container").scrollTop = 1;
</script>

chromium/third_party/blink/web_tests/compositing/scroll-with-inner-clip-expected.html