frameset-disables-resource-scheduling.html

<html>
    <head>
        <script>
            if (window.testRunner) {
                testRunner.dumpAsText();
                testRunner.dumpChildFrames();
            }
        </script>
    </head>
    <frameset>
        <frame src="resources/slow-frame-with-image.php">
    </frameset>
</html>

chromium/third_party/blink/web_tests/http/tests/misc/frameset-disables-resource-scheduling.html