should-not-repaint-scrolling-contents-outline-change.html

<!DOCTYPE html>
<div id="target" style="overflow: scroll; outline: 10px solid red; width: 200px; height: 200px;
    background-color: blue; background-attachment: local; will-change: transform">
  <div style="height: 2000px"></div>
</div>
<script src="../resources/text-based-repaint.js"></script>
<script>
function repaintTest() {
  target.style.outlineColor = 'green';
}
onload = runRepaintAndPixelTest;
</script>

chromium/third_party/blink/web_tests/paint/invalidation/compositing/should-not-repaint-scrolling-contents-outline-change.html