gdata: Convert GDataFileSystem::AddUploadFile() to asynchronous.

chrome/browser/chromeos/gdata/gdata_download_observer.cc

 // Copyright (c) 2012 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/chromeos/gdata/gdata_download_observer.h"
 
 #include "base/file_util.h"
 #include "chrome/browser/chromeos/gdata/gdata_system_service.h"
 #include "chrome/browser/chromeos/gdata/gdata_upload_file_info.h"
 #include "chrome/browser/chromeos/gdata/gdata_uploader.h"
@@ skipping 358 matching lines @@
   upload_file_info->all_bytes_present = download->AllDataSaved();
 
   upload_file_info->completion_callback =
       base::Bind(&GDataDownloadObserver::OnUploadComplete,
                  weak_ptr_factory_.GetWeakPtr(),
                  download->GetId());
 
   return upload_file_info.Pass();
 }
 
-void GDataDownloadObserver::OnUploadComplete(int32 download_id,
-                                             base::PlatformFileError error,
-                                             UploadFileInfo* upload_file_info) {
+void GDataDownloadObserver::OnUploadComplete(
+    int32 download_id,
+    base::PlatformFileError error,
+    scoped_ptr<UploadFileInfo> upload_file_info) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DownloadMap::iterator iter = pending_downloads_.find(download_id);
   if (iter == pending_downloads_.end()) {
     DVLOG(1) << "Pending download not found" << download_id;
     return;
   }
   DVLOG(1) << "Completing upload for download ID " << download_id;
   DownloadItem* download_item = iter->second;
   UploadingExternalData* upload_data = GetUploadingExternalData(download_item);
   DCHECK(upload_data);
   upload_data->CompleteDownload();
 }
 
 }  // namespace gdata