[SyncFS] Add idle callback to SyncFileSystemService for testing

chrome/browser/sync_file_system/sync_file_system_service.h

 // 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.
 
 #ifndef CHROME_BROWSER_SYNC_FILE_SYSTEM_SYNC_FILE_SYSTEM_SERVICE_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_SYNC_FILE_SYSTEM_SERVICE_H_
 
 #include <map>
 #include <string>
 
@@ skipping 62 matching lines @@
   void AddSyncEventObserver(SyncEventObserver* observer);
   void RemoveSyncEventObserver(SyncEventObserver* observer);
 
   LocalChangeProcessor* GetLocalChangeProcessor(const GURL& origin);
 
   // SyncProcessRunner::Client implementations.
   virtual void OnSyncIdle() OVERRIDE;
   virtual SyncServiceState GetSyncServiceState() OVERRIDE;
   virtual SyncFileSystemService* GetSyncService() OVERRIDE;
 
+  void OnPromotionCompleted(int* num_running_jobs);
+  void CheckIfIdle();
+
   TaskLogger* task_logger() { return &task_logger_; }
 
+  void CallOnIdleForTesting(const base::Closure& callback);
+
  private:
   friend class SyncFileSystemServiceFactory;
   friend class SyncFileSystemServiceTest;
   friend struct base::DefaultDeleter<SyncFileSystemService>;
   friend class LocalSyncRunner;
   friend class RemoteSyncRunner;
 
   explicit SyncFileSystemService(Profile* profile);
   virtual ~SyncFileSystemService();
 
@@ skipping 80 matching lines @@
   // Holds all SyncProcessRunners.
   ScopedVector<SyncProcessRunner> local_sync_runners_;
   ScopedVector<SyncProcessRunner> remote_sync_runners_;
 
   // Indicates if sync is currently enabled or not.
   bool sync_enabled_;
 
   TaskLogger task_logger_;
   ObserverList<SyncEventObserver> observers_;
 
+  bool promoting_demoted_changes_;
+  base::Closure idle_callback_;
+
   DISALLOW_COPY_AND_ASSIGN(SyncFileSystemService);
 };
 
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_SYNC_FILE_SYSTEM_SERVICE_H_