src/third_party/WebKit/LayoutTests/fast/forms/number/resources/number-spinbutton-crash-on-detach-frame.html

   1 <input id="num1" type="number" value="0">
   2 <script>
   3 var num1 = document.getElementById('num1');
   4 var mouseX = num1.offsetLeft + num1.offsetWidth - 5;
   5 var mouseY = num1.offsetTop + 5;
   6 eventSender.mouseMoveTo(mouseX, mouseY);
   7 eventSender.mouseMoveTo(mouseX, mouseY - 1);
   8 </script>