chromium/third_party/blink/web_tests/fast/animation/request-animation-frame.html

<!DOCTYPE html>
<title>Tests basic use of requestAnimationFrame</title>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>

<script>
  async_test(t => {
    function finish() {
      t.done();
    }
    window.requestAnimationFrame(finish);
  }, "Test rAF callback");
</script>