Shift "commit point" for when a download will no longer accept cancels.

content/shell/shell_download_manager_delegate.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 "content/shell/shell_download_manager_delegate.h"
 
 #if defined(TOOLKIT_GTK)
 #include <gtk/gtk.h>
 #endif
 
@@ skipping 93 matching lines @@
 }
 
 void ShellDownloadManagerDelegate::OnDownloadPathGenerated(
     int32 download_id,
     const DownloadTargetCallback& callback,
     const FilePath& suggested_path) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   if (suppress_prompting_) {
     // Testing exit.
     callback.Run(suggested_path, DownloadItem::TARGET_DISPOSITION_OVERWRITE,
-                 DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS, suggested_path);
+                 DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,
+                 suggested_path.AddExtension(FILE_PATH_LITERAL(".crdownload")));
     return;
   }
 
   ChooseDownloadPath(download_id, callback, suggested_path);
 }
 
 void ShellDownloadManagerDelegate::ChooseDownloadPath(
     int32 download_id,
     const DownloadTargetCallback& callback,
     const FilePath& suggested_path) {
@@ skipping 62 matching lines @@
       item->GetId(), --last_download_db_handle_);
 }
 
 void ShellDownloadManagerDelegate::SetDownloadBehaviorForTesting(
     const FilePath& default_download_path) {
   default_download_path_ = default_download_path;
   suppress_prompting_ = true;
 }
 
 }  // namespace content