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

chrome/browser/resources/options/content_settings_ui.js

-// Copyright (c) 2010 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() {
-
-  //////////////////////////////////////////////////////////////////////////////
-  // ContentSettingsRadio class:
-
-  // Define a constructor that uses an input element as its underlying element.
-  var ContentSettingsRadio = cr.ui.define('input');
-
-  ContentSettingsRadio.prototype = {
-    __proto__: HTMLInputElement.prototype,
-
-    /**
-     * Initialization function for the cr.ui framework.
-     */
-    decorate: function() {
-      this.type = 'radio';
-      var self = this;
-
-      this.addEventListener('change',
-          function(e) {
-            chrome.send('setContentFilter', [this.name, this.value]);
-          });
-    },
-  };
-
-  // Export
-  return {
-    ContentSettingsRadio: ContentSettingsRadio
-  };
-
-});
-