[Chrome Settings UI] If User Exceptions are not allowed, prevent editing / viewing.

chrome/browser/resources/options/content_settings.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.
 
 cr.exportPath('options');
 
 /**
  * @typedef {{appId: string,
  *            appName: (string|undefined),
  *            embeddingOrigin: (string|undefined),
@@ skipping 113 matching lines @@
         value: dict[group].value,
         controlledBy: controlledBy,
       };
       for (var i = 0; i < indicators.length; i++) {
         indicators[i].handlePrefChange(event);
       }
     }
   };
 
   /**
+   * Updates UI to allow/disallow user from using exceptions for a particular
+   * content setting.
+   * @param {string} type The content settings type being updated.
+   * @param {boolean} allowUserExceptions Whether user may set exceptions.
+   */
+  ContentSettings.setUserExceptionsAllowed = function(type,
+                                                      allowUserExceptions) {
+    // Update exceptions UI window.
+    this.getExceptionsList(type, 'normal').setAllowEdit(allowUserExceptions);
+  };
+
+  /**
    * Initializes an exceptions list.
    * @param {string} type The content type that we are setting exceptions for.
    * @param {Array<options.Exception>} exceptions An array of pairs, where the
    *     first element of each pair is the filter string, and the second is the
    *     setting (allow/block).
    */
   ContentSettings.setExceptions = function(type, exceptions) {
     this.getExceptionsList(type, 'normal').setExceptions(exceptions);
   };
 
@@ skipping 144 matching lines @@
     var deviceSelect = $('media-select-camera');
     chrome.send('setDefaultCaptureDevice', ['camera', deviceSelect.value]);
   };
 
   // Export
   return {
     ContentSettings: ContentSettings
   };
 
 });