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

chrome/browser/sync_file_system/drive_backend/remote_to_local_syncer.cc

 // 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.
 
 #include "chrome/browser/sync_file_system/drive_backend/remote_to_local_syncer.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/files/file_util.h"
 #include "base/format_macros.h"
@@ skipping 61 matching lines @@
 scoped_ptr<FileMetadata> GetFileMetadata(MetadataDatabase* database,
                                          const std::string& file_id) {
   scoped_ptr<FileMetadata> metadata(new FileMetadata);
   if (!database->FindFileByFileID(file_id, metadata.get()))
     metadata.reset();
   return metadata.Pass();
 }
 
 // Creates a temporary file in |dir_path|.  This must be called on an
 // IO-allowed task runner, and the runner must be given as |file_task_runner|.
-storage::ScopedFile CreateTemporaryFile(base::TaskRunner* file_task_runner) {
+storage::ScopedFile CreateTemporaryFile(
+    const scoped_refptr<base::TaskRunner>& file_task_runner) {
   base::FilePath temp_file_path;
   if (!base::CreateTemporaryFile(&temp_file_path))
     return storage::ScopedFile();
 
   return storage::ScopedFile(temp_file_path,
                              storage::ScopedFile::DELETE_ON_SCOPE_OUT,
                              file_task_runner);
 }
 
 }  // namespace
@@ skipping 669 matching lines @@
 
 SyncStatusCallback RemoteToLocalSyncer::SyncCompletedCallback(
     scoped_ptr<SyncTaskToken> token) {
   return base::Bind(&RemoteToLocalSyncer::SyncCompleted,
                     weak_ptr_factory_.GetWeakPtr(),
                     base::Passed(&token));
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system