<html>
<script>
    if (window.testRunner) {
        testRunner.dumpAsText();
        testRunner.overridePreference("WebKitDefaultFontSize", "24");
    }
</script>
<body>
    <p>This test verifies that testRunner can have its default preferences overriden.
    This test verifies that the API will accept string values and also override the default font size.
    You should see "PASS" below.</p>
    <script>
        var p = document.getElementsByTagName("p")[0];
        if (!window.testRunner || window.getComputedStyle(p).fontSize == "24px")
            document.write("PASS");
    </script>
</body>
</html>