<!DOCTYPE html>
<head>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body style="background: lightgrey;">
  <h1>Grandchild frame</h1>
  <script>
    async_test(function(t) {
        assert_false(navigator.userActivation.isActive);
        assert_false(navigator.userActivation.hasBeenActive);

        window.addEventListener("message", event => {
            if (event.source === parent && event.data === 'check-request') {
                // Grandchild shouldn't be active after child is clicked.
                assert_false(navigator.userActivation.isActive);
                assert_false(navigator.userActivation.hasBeenActive);

                // Notify top frame that checks are done.
                parent.parent.postMessage('checked', '*');

                t.done();
            }
        });

    }, "Grandchild test");
  </script>
</body>