[SyncFS] Run LocalToRemoteSyncer as SyncTask

chrome/browser/sync_file_system/drive_backend/local_to_remote_syncer.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_LOCAL_TO_REMOTE_SYNCER_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_LOCAL_TO_REMOTE_SYNCER_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 20 matching lines @@
 
 class RemoteChangeProcessor;
 
 namespace drive_backend {
 
 class FileTracker;
 class FolderCreator;
 class MetadataDatabase;
 class SyncEngineContext;
 
-class LocalToRemoteSyncer : public ExclusiveTask {
+class LocalToRemoteSyncer : public SyncTask {
  public:
   LocalToRemoteSyncer(SyncEngineContext* sync_context,
                       const SyncFileMetadata& local_metadata,
                       const FileChange& local_change,
                       const base::FilePath& local_path,
                       const fileapi::FileSystemURL& url);
   virtual ~LocalToRemoteSyncer();
-  virtual void RunExclusive(const SyncStatusCallback& callback) OVERRIDE;
+  virtual void RunPreflight(scoped_ptr<SyncTaskToken> token) OVERRIDE;
+  void RunExclusive(scoped_ptr<SyncTaskToken> token);
 
   const fileapi::FileSystemURL& url() const { return url_; }
   const base::FilePath& target_path() const { return target_path_; }
   SyncAction sync_action() const { return sync_action_; }
   bool needs_remote_change_listing() const {
     return needs_remote_change_listing_;
   }
 
  private:
-  void SyncCompleted(const SyncStatusCallback& callback,
+  void SyncCompleted(scoped_ptr<SyncTaskToken> token,
                      SyncStatusCode status);
 
   void HandleConflict(const SyncStatusCallback& callback);
   void HandleExistingRemoteFile(const SyncStatusCallback& callback);
 
   void DeleteRemoteFile(const SyncStatusCallback& callback);
   void DidDeleteRemoteFile(const SyncStatusCallback& callback,
                            google_apis::GDataErrorCode error);
 
   void UploadExistingFile(const SyncStatusCallback& callback);
@@ skipping 54 matching lines @@
 
   base::WeakPtrFactory<LocalToRemoteSyncer> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(LocalToRemoteSyncer);
 };
 
 }  // namespace drive_backend
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_LOCAL_TO_REMOTE_SYNCER_H_