LayoutTests/fast/performance/performance-object-gc.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
 <body>
 <script src="../../resources/js-test-pre.js"></script>
 <script>
 description("Tests that the Performance wrapper stays alive for as long as its frame.");
 jsTestIsAsync = true;

 shouldBe("window.performance.__proto__", "Performance.prototype");
 shouldBeUndefined("window.performance.customProperty");
 evalAndLog("window.performance.customProperty = 1");
 shouldBe("window.performance.customProperty", "1");
 gc();
 shouldBe("window.performance.customProperty", "1");

 onload = function() {
     gc();
     shouldBe("window.performance.customProperty", "1");
     setTimeout(checkAndFinish, 0);
 }

 function checkAndFinish()
 {
     gc();
     shouldBe("window.performance.customProperty", "1");
     finishJSTest();
 }
 </script>
 <script src="../../resources/js-test-post.js"></script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<body>
	<script src="../../resources/js-test-pre.js"></script>
	<script>
	description("Tests that the Performance wrapper stays alive for as long as its frame.");
	jsTestIsAsync = true;

	shouldBe("window.performance.__proto__", "Performance.prototype");
	shouldBeUndefined("window.performance.customProperty");
	evalAndLog("window.performance.customProperty = 1");
	shouldBe("window.performance.customProperty", "1");
	gc();
	shouldBe("window.performance.customProperty", "1");

	onload = function() {
	gc();
	shouldBe("window.performance.customProperty", "1");
	setTimeout(checkAndFinish, 0);
	}

	function checkAndFinish()
	{
	gc();
	shouldBe("window.performance.customProperty", "1");
	finishJSTest();
	}
	</script>
	<script src="../../resources/js-test-post.js"></script>
	</body>
	</html>