root-scroller-apply-filter-to-parent-expected.html

<!DOCTYPE html>
<style>
  ::-webkit-scrollbar {
    width: 0px;
    height: 0px;
  }

  body, html {
    width: 100%;
    height: 100%;
  }

  body {
    margin: 0px;
  }

  #rootscroller {
    width: 100%;
    height: 100%;
    overflow: auto;
    will-change: transform;
    background-image:linear-gradient(0deg, transparent 50%, #0a0 50%),
                     linear-gradient(90deg, #a00 50%, #0a0 50%);
    background-size:75px 75px,75px 75px;
    background-position:0 0, 0 25px;
  }

  #parent {
    width: 100%;
    height: 100%;
    filter: sepia(100);
  }

  .spacer {
    margin: 50px;
    width: 20px;
    height: 150%;
    background-color: blue;
  }
</style>

<div id="parent">
  <div id="rootscroller">
    <div class="spacer">
    </div>
  </div>
</div>

chromium/third_party/blink/web_tests/rootscroller/root-scroller-apply-filter-to-parent-expected.html