Update all bookmarks which use an icon URL when a favicon's bitmap is updated

chrome/browser/sync/sessions/notification_service_sessions_router.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_SYNC_SESSIONS_NOTIFICATION_SERVICE_SESSIONS_ROUTER_H_
 #define CHROME_BROWSER_SYNC_SESSIONS_NOTIFICATION_SERVICE_SESSIONS_ROUTER_H_
 
 #include <set>
 
 #include "base/callback_list.h"
@@ skipping 33 matching lines @@
   void Stop() override;
 
  private:
   // Called when the URL visited in |web_contents| was blocked by the
   // SupervisedUserService. We forward this on to our handler_ via the
   // normal OnLocalTabModified, but pass through here via a WeakPtr
   // callback from SupervisedUserService and to extract the tab delegate
   // from WebContents.
   void OnNavigationBlocked(content::WebContents* web_contents);
 
-  // Called when the urls of favicon changed.
-  void OnFaviconChanged(const std::set<GURL>& changed_favicons);
+  // Called when the favicons for the given page URLs
+  // (e.g. http://www.google.com) and the given icon URLs (e.g.
+  // http://www.google.com/favicon.ico) have changed.
+  void OnFaviconsChanged(const std::vector<GURL>& page_urls,
+                         const std::vector<GURL>& icon_urls);
 
   LocalSessionEventHandler* handler_;
   content::NotificationRegistrar registrar_;
   Profile* const profile_;
   syncer::SyncableService::StartSyncFlare flare_;
 
-  scoped_ptr<base::CallbackList<void(const std::set<GURL>&)>::Subscription>
+  scoped_ptr<base::CallbackList<void(const std::vector<GURL>&,
+                                     const std::vector<GURL>&)>::Subscription>
       favicon_changed_subscription_;
 
   base::WeakPtrFactory<NotificationServiceSessionsRouter> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NotificationServiceSessionsRouter);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_SESSIONS_NOTIFICATION_SERVICE_SESSIONS_ROUTER_H_