chromium/src/third_party/blink/web_tests/http/tests/history/push-state-in-new-frame.html - manifest_repos/chromium_src - Git at Google

 <body>
 <script>
 if (window.testRunner) {
     testRunner.dumpAsText();
     testRunner.dumpBackForwardList();
 }

 var i = document.createElement("iframe");
 i.src = "../navigation/resources/blank.txt";
 document.body.appendChild(i);
 i.contentWindow.history.pushState({new: "state"}, "", "http://127.0.0.1:8000/pushState.html");
 </script>
 </body>
	<body>
	<script>
	if (window.testRunner) {
	testRunner.dumpAsText();
	testRunner.dumpBackForwardList();
	}

	var i = document.createElement("iframe");
	i.src = "../navigation/resources/blank.txt";
	document.body.appendChild(i);
	i.contentWindow.history.pushState({new: "state"}, "", "http://127.0.0.1:8000/pushState.html");
	</script>
	</body>