Foreign tab suggestions should update when disabling sync or signing out.

components/sync_sessions/sessions_sync_manager.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 COMPONENTS_SYNC_SESSIONS_SESSIONS_SYNC_MANAGER_H_
 #define COMPONENTS_SYNC_SESSIONS_SESSIONS_SYNC_MANAGER_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 72 matching lines @@
   // OpenTabsUIDelegate implementation.
   bool GetSyncedFaviconForPageURL(
       const std::string& pageurl,
       scoped_refptr<base::RefCountedMemory>* favicon_png) const override;
   bool GetAllForeignSessions(
       std::vector<const SyncedSession*>* sessions) override;
   bool GetForeignSession(
       const std::string& tag,
       std::vector<const sessions::SessionWindow*>* windows) override;
   bool GetForeignTab(const std::string& tag,
-                     const SessionID::id_type tab_id,
+                     SessionID::id_type tab_id,
                      const sessions::SessionTab** tab) override;
   bool GetForeignSessionTabs(
       const std::string& tag,
       std::vector<const sessions::SessionTab*>* tabs) override;
   void DeleteForeignSession(const std::string& tag) override;
   bool GetLocalSession(const SyncedSession** local_session) override;
 
   // LocalSessionEventHandler implementation.
   void OnLocalTabModified(SyncedTabDelegate* modified_tab) override;
   void OnFaviconsChanged(const std::set<GURL>& page_urls,
@@ skipping 273 matching lines @@
 
   // Callback to inform sync that a sync data refresh is requested.
   base::Closure datatype_refresh_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(SessionsSyncManager);
 };
 
 }  // namespace sync_sessions
 
 #endif  // COMPONENTS_SYNC_SESSIONS_SESSIONS_SYNC_MANAGER_H_