Make it possible to revoke Web Notification exceptions in content settings.

chrome/browser/resources/options/content_settings_exceptions_area.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.define('options.contentSettings', function() {
   /** @const */ var ControlledSettingIndicator =
                     options.ControlledSettingIndicator;
   /** @const */ var InlineEditableItemList = options.InlineEditableItemList;
   /** @const */ var InlineEditableItem = options.InlineEditableItem;
   /** @const */ var ArrayDataModel = cr.ui.ArrayDataModel;
@@ skipping 561 matching lines @@
       }
     },
 
     /** @override */
     deleteItemAtIndex: function(index) {
       var listItem = this.getListItemByIndex(index);
       if (!listItem.deletable)
         return;
 
       var dataItem = listItem.dataItem;
-      var args = [listItem.contentType];
-      if (listItem.contentType == 'notifications')
-        args.push(dataItem.origin, dataItem.setting);
-      else
-        args.push(listItem.mode, dataItem.origin, dataItem.embeddingOrigin);
-
-      chrome.send('removeException', args);
+      chrome.send('removeException', [listItem.contentType,
+                                      listItem.mode,
+                                      dataItem.origin,
+                                      dataItem.embeddingOrigin]);
     },
   };
 
   var Page = cr.ui.pageManager.Page;
   var PageManager = cr.ui.pageManager.PageManager;
 
   /**
    * Encapsulated handling of content settings list subpage.
    *
    * @constructor
@@ skipping 86 matching lines @@
     }
   };
 
   return {
     ExceptionsListItem: ExceptionsListItem,
     ExceptionsAddRowListItem: ExceptionsAddRowListItem,
     ExceptionsList: ExceptionsList,
     ContentSettingsExceptionsArea: ContentSettingsExceptionsArea,
   };
 });