Apply content-security-policy to the HTML options page. This is a

chrome/browser/resources/shared/js/options/about_page.js

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 cr.define('options', function() {
   const OptionsPage = options.OptionsPage;
 
   /**
    * The number of milliseconds used for showing a message.
    * @type {number}
@@ skipping 193 matching lines @@
   AboutPage.changeToRestartButton = function() {
     AboutPage.getInstance().changeToRestartButton_();
   };
 
   // Export
   return {
     AboutPage: AboutPage
   };
 
 });