Properly handle initialization failure and following manager shutdown without

sync/internal_api/sync_rollback_manager_base.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 SYNC_INTERNAL_API_SYNC_ROLLBACK_MANAGER_BASE_H_
 #define SYNC_INTERNAL_API_SYNC_ROLLBACK_MANAGER_BASE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 105 matching lines @@
   ObserverList<SyncManager::Observer>* GetObservers();
 
   virtual void RegisterDirectoryTypeDebugInfoObserver(
       syncer::TypeDebugInfoObserver* observer) OVERRIDE;
   virtual void UnregisterDirectoryTypeDebugInfoObserver(
       syncer::TypeDebugInfoObserver* observer) OVERRIDE;
   virtual bool HasDirectoryTypeDebugInfoObserver(
       syncer::TypeDebugInfoObserver* observer) OVERRIDE;
   virtual void RequestEmitDebugInfo() OVERRIDE;
 
+  bool initialized() const {
+    return initialized_;
+  }
+
  private:
   void NotifyInitializationSuccess();
   void NotifyInitializationFailure();
 
   bool InitBackupDB(
       const base::FilePath& sync_folder,
       InternalComponentsFactory* internal_components_factory);
 
   bool InitTypeRootNode(ModelType type);
   void InitBookmarkFolder(const std::string& folder);
 
   UserShare share_;
   ObserverList<SyncManager::Observer> observers_;
 
   scoped_ptr<UnrecoverableErrorHandler> unrecoverable_error_handler_;
   ReportUnrecoverableErrorFunction report_unrecoverable_error_function_;
 
   base::WeakPtrFactory<SyncRollbackManagerBase> weak_ptr_factory_;
 
   scoped_ptr<SyncEncryptionHandler> dummy_handler_;
 
+  bool initialized_;
+
   DISALLOW_COPY_AND_ASSIGN(SyncRollbackManagerBase);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_INTERNAL_API_SYNC_ROLLBACK_MANAGER_BASE_H_