Don't notify existing observers in SupervisedUserWhitelistService::AddSiteListsChangedCallback().

chrome/browser/supervised_user/supervised_user_whitelist_service.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_WHITELIST_SERVICE_H_
 #define CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_WHITELIST_SERVICE_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 80 matching lines @@
   void SetWhitelistProperties(
       base::DictionaryValue* pref_dict,
       const sync_pb::ManagedUserWhitelistSpecifics& whitelist);
   void RemoveWhitelist(base::DictionaryValue* pref_dict, const std::string& id);
 
   // Registers a new or existing whitelist.
   void RegisterWhitelist(const std::string& id,
                          const std::string& name,
                          bool new_installation);
 
+  void GetLoadedWhitelists(
+      std::vector<scoped_refptr<SupervisedUserSiteList>>* whitelists);
+
   void NotifyWhitelistsChanged();
 
   void OnWhitelistReady(const std::string& id,
                         const base::FilePath& whitelist_path);
   void OnWhitelistLoaded(
       const std::string& id,
       base::TimeTicks start_time,
       const scoped_refptr<SupervisedUserSiteList>& whitelist);
 
   PrefService* prefs_;
   scoped_ptr<component_updater::SupervisedUserWhitelistInstaller> installer_;
   std::vector<SiteListsChangedCallback> site_lists_changed_callbacks_;
 
   // The set of registered whitelists. A whitelist might be registered but not
   // loaded yet, in which case it will not be in |loaded_whitelists_| yet.
   // On the other hand, every loaded whitelist has to be registered.
   std::set<std::string> registered_whitelists_;
   std::map<std::string, scoped_refptr<SupervisedUserSiteList> >
       loaded_whitelists_;
 
   base::WeakPtrFactory<SupervisedUserWhitelistService> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SupervisedUserWhitelistService);
 };
 
 #endif  // CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_WHITELIST_SERVICE_H_