// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import {assertTrue} from 'chrome://webui-test/chai_assert.js';
window.onload = function() {
assertTrue(!!window.top);
// The user scrolled past a scroll quartile threshold.
window.top.postMessage(
{
data: {
event: 'scroll',
percent_scrolled: '25', // 0 || 25 || 50 || 75 || 100
},
},
'chrome://whats-new/');
};