FileAPI/sync file system cleanups for scoped_refptr operator T* cleanup.

chrome/browser/sync_file_system/drive_backend/sync_engine_context.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_CONTEXT_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_ENGINE_CONTEXT_H_
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 18 matching lines @@
 namespace drive_backend {
 
 class MetadataDatabase;
 
 class SyncEngineContext {
  public:
   SyncEngineContext(
       scoped_ptr<drive::DriveServiceInterface> drive_service,
       scoped_ptr<drive::DriveUploaderInterface> drive_uploader,
       TaskLogger* task_logger,
-      base::SingleThreadTaskRunner* ui_task_runner,
-      base::SequencedTaskRunner* worker_task_runner);
+      const scoped_refptr<base::SingleThreadTaskRunner>& ui_task_runner,
+      const scoped_refptr<base::SequencedTaskRunner>& worker_task_runner);
   ~SyncEngineContext();
 
   void SetMetadataDatabase(scoped_ptr<MetadataDatabase> metadata_database);
   void SetRemoteChangeProcessor(
       RemoteChangeProcessor* remote_change_processor);
 
   drive::DriveServiceInterface* GetDriveService();
   drive::DriveUploaderInterface* GetDriveUploader();
   base::WeakPtr<TaskLogger> GetTaskLogger();
   MetadataDatabase* GetMetadataDatabase();
@@ skipping 19 matching lines @@
 
   base::SequenceChecker sequence_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncEngineContext);
 };
 
 }  // namespace drive_backend
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_ENGINE_CONTEXT_H_