chromium/chrome/test/data/extensions/api_test/user_scripts/persistent_scripts/content_script.js

// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

var div = document.createElement('div');
div.id = 'injected_content_script';
document.body.appendChild(div);