<html>
<script src="../../resources/js-test-pre.js"></script>
<script>
  if (window.internals) {
      window.internals.setUsesMockScrollAnimator(true);
      window.internals.setUsesOverlayScrollbars(true);
  }
  if (window.testRunner) {
      testRunner.waitUntilDone();
      testRunner.dumpAsText();
  }
  window.onload = function () {
      var frame = document.getElementById("frame");
      if (window.eventSender) {
          eventSender.mouseMoveTo(0, 0);
          eventSender.mouseMoveTo(frame.offsetLeft + 4, frame.offsetTop + frame.offsetHeight - 4);
          eventSender.mouseMoveTo(0, 0);
      }
      if (window.testRunner)
          testRunner.notifyDone();
  };
</script>
<script src="../../resources/js-test-post.js"></script>
<body>
  <p>Test for <a href="https://bugs.webkit.org/show_bug.cgi?id=153304">https://bugs.webkit.org/show_bug.cgi?id=153304</a>.</p>
  <iframe width=120 scrolling=yes id="frame" src="data:text/html,
      <p style='white-space: nowrap'>Scroll animator should be notified when overlay scrollbars in main frame are hovered</p>
      ">
  </iframe>
  <pre id="console"></pre>
</body>
</html>