Add ProgressCallback to DriveServiceInterface::DownloadFile.

chrome/browser/chromeos/drive/drive_scheduler.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/drive/drive_scheduler.h"
 
 #include <math.h>
 
 #include "base/message_loop.h"
 #include "base/prefs/pref_service.h"
@@ skipping 567 matching lines @@
     break;
 
     case TYPE_DOWNLOAD_FILE: {
       drive_service_->DownloadFile(
           entry->virtual_path,
           entry->local_cache_path,
           entry->download_url,
           base::Bind(&DriveScheduler::OnDownloadActionJobDone,
                      weak_ptr_factory_.GetWeakPtr(),
                      base::Passed(&queue_entry)),
-          entry->get_content_callback);
+          entry->get_content_callback,
+          google_apis::ProgressCallback());
     }
     break;
 
     case TYPE_UPLOAD_NEW_FILE: {
       uploader_->UploadNewFile(
           entry->resource_id,
           entry->drive_file_path,
           entry->local_file_path,
           entry->title,
           entry->content_type,
@@ skipping 302 matching lines @@
     case TYPE_DOWNLOAD_FILE:
     case TYPE_UPLOAD_NEW_FILE:
     case TYPE_UPLOAD_EXISTING_FILE:
       return FILE_QUEUE;
   }
   NOTREACHED();
   return FILE_QUEUE;
 }
 
 }  // namespace drive