[SyncFS] Replace callback with token in UploadNewFile

chrome/browser/sync_file_system/drive_backend/local_to_remote_syncer.h

Index: chrome/browser/sync_file_system/drive_backend/local_to_remote_syncer.h
diff --git a/chrome/browser/sync_file_system/drive_backend/local_to_remote_syncer.h b/chrome/browser/sync_file_system/drive_backend/local_to_remote_syncer.h
index 5acb5410bd38db1059ae5a7bf8f4c28dbfb7a9f7..ef9c9e73045068c35d9870f3d2cee2a282bdb6ae 100644
--- a/chrome/browser/sync_file_system/drive_backend/local_to_remote_syncer.h
+++ b/chrome/browser/sync_file_system/drive_backend/local_to_remote_syncer.h
@@ -84,13 +84,13 @@ class LocalToRemoteSyncer : public SyncTask {
                             google_apis::GDataErrorCode error,
                             scoped_ptr<google_apis::FileResource> entry);
 
-  void DidDeleteForUploadNewFile(const SyncStatusCallback& callback,
+  void DidDeleteForUploadNewFile(scoped_ptr<SyncTaskToken> token,
                                  SyncStatusCode status);
   void DidDeleteForCreateFolder(scoped_ptr<SyncTaskToken> token,
                                 SyncStatusCode status);
 
-  void UploadNewFile(const SyncStatusCallback& callback);
-  void DidUploadNewFile(const SyncStatusCallback& callback,
+  void UploadNewFile(scoped_ptr<SyncTaskToken> token);
+  void DidUploadNewFile(scoped_ptr<SyncTaskToken> token,
                         google_apis::GDataErrorCode error,
                         const GURL& upload_location,
                         scoped_ptr<google_apis::FileResource> entry);
@@ -99,7 +99,7 @@ class LocalToRemoteSyncer : public SyncTask {
   void DidCreateRemoteFolder(scoped_ptr<SyncTaskToken> token,
                              const std::string& file_id,
                              SyncStatusCode status);
-  void DidDetachResourceForCreationConflict(const SyncStatusCallback& callback,
+  void DidDetachResourceForCreationConflict(scoped_ptr<SyncTaskToken> token,
                                             google_apis::GDataErrorCode error);
 
   bool IsContextReady();