Always trust internal PDF viewer.

chrome/browser/resources/plugins.js

 // Copyright (c) 2012 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.
 
 /**
  * Takes the |pluginsData| input argument which represents data about the
  * currently installed/running plugins and populates the html jstemplate with
  * that data.
  * @param {Object} pluginsData Detailed info about installed plugins. Same
  *     expected format as returnPluginsData().
@@ skipping 224 matching lines @@
  * @param {Object} plugin An object containing the information about a plugin.
  *     See returnPluginsData() for the format of this object.
  * @return {boolean} Whether the plugin is enabled.
  */
 function isPluginEnabled(plugin) {
   return plugin.enabled_mode == 'enabledByUser' ||
          plugin.enabled_mode == 'enabledByPolicy';
 }
 
 /**
+ * @param {Object} plugin An object containing the information about a plugin.
+ *     See returnPluginsData() for the format of this object.
+ * @return {boolean} Whether the plugin is fully trusted.
+ */
+function isPluginTrusted(plugin) {
+ return plugin.trusted == true;
+}
+
+/**
  * Helper to convert callback-based define() API to a promise-based API.
  * @param {!Array<string>} moduleNames
  * @return {!Promise}
  */
 function importModules(moduleNames) {
   return new Promise(function(resolve, reject) {
     define(moduleNames, function(var_args) {
       resolve(Array.prototype.slice.call(arguments, 0));
     });
   });
@@ skipping 71 matching lines @@
 
     // Unfortunately, we don't have notifications for plugin (list) status
     // changes (yet), so in the meanwhile just update regularly.
     setInterval(function() {
       browserProxy.getPluginsData().then(returnPluginsData);
     }, 30000);
   });
 }
 
 document.addEventListener('DOMContentLoaded', main);