chromium/third_party/blink/web_tests/media/controls/tap-to-hide-controls.html

<!DOCTYPE html>
<html>
<title>Test that the controls are hidden if they are tapped</title>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="../media-controls.js"></script>
<video controls width=400 src="../content/60_sec_video.webm"></video>
<script>
async_test(t => {
  // This number comes from MediaControlOverlayPlayButtonElement.cpp.
  const doubleTapTimeoutMs = 301;
  const video = document.querySelector('video');

  video.addEventListener('playing', t.step_func(() => {
    assert_true(isControlsPanelVisible(video));

    // Single tap in the top right hand corner
    const c = coordinatesOutsideElement(mediaControlsOverlayPlayButton(video));
    singleTouchAtCoordinates(c[0] + 1, c[1] + 1, t.step_func(() => {
      // Wait for the tap to expire.
      setTimeout(t.step_func_done(() => {
        assert_false(isControlsPanelVisible(video));
      }), doubleTapTimeoutMs);
    }));
  }), { once: true });

  video.play();
});
</script>
</html>i