<!DOCTYPE html>
<html>
<head>
<script>
    if (window.testRunner)
        testRunner.dumpAsText();

    function boom()
    {
        var f = document.getElementById("f");
        var frameWin = f.contentWindow;
        document.body.removeChild(f);
        frameWin.performance;

        document.write("PASS. WebKit didn't crash.");
    }
</script>
</head>
<body onload="boom();"><iframe id="f" src="data:text/html,1"></iframe></body>
</html>