LayoutTests/fast/dom/resources/timer-frame.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
 <body>
 <iframe id="grandChildFrame" src="timer-frame-2.html"></iframe>
 <script>
 var i = 0;
 setInterval(function() {
   i++;
 }, 100);
 </script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<body>
	<iframe id="grandChildFrame" src="timer-frame-2.html"></iframe>
	<script>
	var i = 0;
	setInterval(function() {
	i++;
	}, 100);
	</script>
	</body>
	</html>