chromium/content/test/data/accessibility/accname/name-text-dynamic-labelledby.html

<!--
@BLINK-DENY:description
@WAIT-FOR:done
-->
<!DOCTYPE html>
<html>
<body>
  <input id="test">
  <div id="t1">foo</div>
</body>
</html>

<script>
  document.addEventListener('DOMContentLoaded', () => {
    setTimeout(() => {
      document.querySelector('#test').setAttribute("aria-labelledby", "t1");
      document.title='done';
    }, 50);
  });
</script>