chromium/third_party/blink/web_tests/compositing/images/direct-image-dynamic-border-radius-expected.html

<!DOCTYPE html>
<html>
<style>
  .border {
    will-change: transform;
    border-radius: 50%;
  }
</style>

<!-- There should be a green circle on this page -->
<body>
  <img class="border" src="../../images/resources/green-256x256.jpg">
</body>

</html>