LayoutTests/fast/media/media-query-list-mutation.html

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

const queries = [];
queries.push(window.matchMedia("screen"));
queries.push(window.matchMedia("screen"));

queries[0].addListener(() => {
    for (let i = 0; i < 20; ++i)
        queries.push(window.matchMedia("screen"))

    requestAnimationFrame(() => testRunner.notifyDone());
});

window.internals.settings.setMediaTypeOverride("handheld");
</script>
This test passes if it doesn't crash.