scroll-horizontal-scroll-percent-change.html

<!--
@WIN-DENY:EVENT_OBJECT_STATECHANGE*
-->
<!DOCTYPE html>
<html>
<body>
  <div id="div" style="width: 200px; height: 200px; overflow: scroll;">
    <div style="width: 400px; background-color: green;">overflow div</div>
  </div>

  <div style="width: 150vw; background-color: yellow;">overflow window</div>

<script>
  function go() {
    // scroll page in the x direction
    window.scrollTo(20, 0);
    // scroll the overflow div in the x direction.
    document.getElementById('div').scrollTo(20, 0);
  }
</script>
</body>
</html>

chromium/content/test/data/accessibility/event/scroll-horizontal-scroll-percent-change.html