chromium/third_party/blink/web_tests/shadow-dom/getinnerhtml-use-counter.html

<!DOCTYPE html>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>

<body>
<script>
test(() => {
    const kElementGetInnerHTML = 3874; // From web_feature.mojom
    assert_false(internals.isUseCounted(document, kElementGetInnerHTML));
    document.body.getInnerHTML({includeShadowRoots: true});
    assert_true(internals.isUseCounted(document, kElementGetInnerHTML));
}, 'Use of getInnerHTML is use counted.');
</script>