LayoutTests/compositing/toggle-compositing.html - WebKit - Git at Google

 <body style="background-color: green;">
     <!-- This test should not assert in WebKit2, nor should it show flashing if you load it manually. -->
     <div id="target"></div>
     <script>
         if (window.layoutTestController) {
             layoutTestController.dumpAsText();
             layoutTestController.waitUntilDone();
         }

         var count = 0;
         var intervalID = window.setInterval(function() {
             var target = document.getElementById("target");
             target.style.webkitTransform = "translateZ(0)";
             document.body.offsetTop;
             target.style.removeProperty("-webkit-transform");

             if (++count == 10) {
               window.clearInterval(intervalID);
               if (window.layoutTestController)
                 layoutTestController.notifyDone();
             }
         }, 100);
     </script>
 </body>
	<body style="background-color: green;">
	<!-- This test should not assert in WebKit2, nor should it show flashing if you load it manually. -->
	<div id="target"></div>
	<script>
	if (window.layoutTestController) {
	layoutTestController.dumpAsText();
	layoutTestController.waitUntilDone();
	}

	var count = 0;
	var intervalID = window.setInterval(function() {
	var target = document.getElementById("target");
	target.style.webkitTransform = "translateZ(0)";
	document.body.offsetTop;
	target.style.removeProperty("-webkit-transform");

	if (++count == 10) {
	window.clearInterval(intervalID);
	if (window.layoutTestController)
	layoutTestController.notifyDone();
	}
	}, 100);
	</script>
	</body>