chromium/third_party/blink/web_tests/compositing/iframes/crash-mouse-event.html

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

    function testDone()
    {
        if (window.eventSender) {
            eventSender.mouseDown();
        }
        if (window.testRunner) {
            testRunner.notifyDone();
        }
    }
</script>
<iframe src=resources/leave-compositing-subframe-click.html></iframe>
<p>This test passes if it doesn't crash.</p>