[NOCOMMIT] Make DriveService{Wrapper|Messenger} class

chrome/browser/sync_file_system/drive_backend/sync_engine.h

 // Copyright 2013 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_DRIVE_BACKEND_SYNC_ENGINE_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_ENGINE_H_
 
 #include <set>
 #include <string>
 
@@ skipping 23 matching lines @@
 namespace leveldb {
 class Env;
 }
 
 namespace sync_file_system {
 
 class RemoteChangeProcessor;
 
 namespace drive_backend {
 
+class DriveServiceWrapper;
 class LocalToRemoteSyncer;
 class MetadataDatabase;
 class RemoteToLocalSyncer;
 class SyncEngineInitializer;
 class SyncTaskManager;
 class SyncWorker;
 
 class SyncEngine : public RemoteFileSyncService,
                    public LocalChangeProcessor,
                    public drive::DriveNotificationObserver,
                    public drive::DriveServiceObserver,
                    public net::NetworkChangeNotifier::NetworkChangeObserver {
  public:
   typedef Observer SyncServiceObserver;
 
   static scoped_ptr<SyncEngine> CreateForBrowserContext(
       content::BrowserContext* context);
   static void AppendDependsOnFactories(
       std::set<BrowserContextKeyedServiceFactory*>* factories);
 
   virtual ~SyncEngine();
 
   void Initialize(const base::FilePath& base_dir,
                   base::SequencedTaskRunner* file_task_runner,
+                  bool pass_service_to_worker,
                   leveldb::Env* env_override);
 
   // RemoteFileSyncService overrides.
   virtual void AddServiceObserver(SyncServiceObserver* observer) OVERRIDE;
   virtual void AddFileStatusObserver(FileStatusObserver* observer) OVERRIDE;
   virtual void RegisterOrigin(
       const GURL& origin,
       const SyncStatusCallback& callback) OVERRIDE;
   virtual void EnableOrigin(
       const GURL& origin,
@@ skipping 78 matching lines @@
                               const fileapi::FileSystemURL& url);
   void DidApplyLocalChange(sync_file_system::SyncAction sync_action,
                            const fileapi::FileSystemURL& url,
                            const base::FilePath& target_path,
                            SyncStatusCode status);
   void UpdateServiceState(const std::string& description);
   void UpdateRegisteredApps();
   void NotifyLastOperationStatus();
 
   scoped_ptr<drive::DriveServiceInterface> drive_service_;
+  scoped_ptr<DriveServiceWrapper> drive_service_wrapper_;
   scoped_ptr<drive::DriveUploaderInterface> drive_uploader_;
 
   // These external services are not owned by SyncEngine.
   // The owner of the SyncEngine is responsible for their lifetime.
   // I.e. the owner should declare the dependency explicitly by calling
   // KeyedService::DependsOn().
   drive::DriveNotificationManager* notification_manager_;
   ExtensionServiceInterface* extension_service_;
   SigninManagerBase* signin_manager_;
 
   ObserverList<SyncServiceObserver> service_observers_;
   ObserverList<FileStatusObserver> file_status_observers_;
 
   scoped_ptr<SyncWorker> sync_worker_;
   scoped_refptr<base::SequencedTaskRunner> worker_task_runner_;
 
   base::WeakPtrFactory<SyncEngine> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(SyncEngine);
 };
 
 }  // namespace drive_backend
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_ENGINE_H_