LayoutTests/fast/media/resources/media-query-list-callback-frame.html - WebKit - Git at Google

 <!DOCTYPE html>
 <style>
 @media (max-width: 200px) {
   body {
     background: orange;
   }
 }
 </style>
 <script>
 var mql = window.matchMedia('(max-width: 200px)');
 mql.addListener(function (mql) {
 });
 </script>
	<!DOCTYPE html>
	<style>
	@media (max-width: 200px) {
	body {
	background: orange;
	}
	}
	</style>
	<script>
	var mql = window.matchMedia('(max-width: 200px)');
	mql.addListener(function (mql) {
	});
	</script>