chromium/content/test/data/accessibility/accname/name-checkbox-label-embedded-textbox.html

<!--
@BLINK-DENY:descri*
-->
<!doctype html>
<html>
<body>
<input type="checkbox" id="test" />
<label for="test">Flash the screen
  <div role="textbox" contenteditable>1</div>
  times.
</label>
</body>
</html>