GData save package support with MHTML.

content/public/browser/download_manager_delegate.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_DOWNLOAD_MANAGER_DELEGATE_H_
 #define CONTENT_PUBLIC_BROWSER_DOWNLOAD_MANAGER_DELEGATE_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/callback.h"
@@ skipping 91 matching lines @@
   virtual void RemoveItemsFromPersistentStoreBetween(
       base::Time remove_begin,
       base::Time remove_end) {}
 
   // Retrieve the directories to save html pages and downloads to.
   virtual void GetSaveDir(WebContents* web_contents,
                           FilePath* website_save_dir,
                           FilePath* download_save_dir) {}
 
   // Asks the user for the path to save a page. The delegate calls the callback
-  // to give the answer.
+  // to give the answer, except on ChromeOS, where the saving is done by
+  // SavePackageFilePickerChromeOS. TODO(achuith): Move ChromeOS save
+  // functionality to SavePackage.
   virtual void ChooseSavePath(WebContents* web_contents,
                               const FilePath& suggested_path,
                               const FilePath::StringType& default_extension,
                               bool can_save_as_complete,
                               SaveFilePathPickedCallback callback) {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_DOWNLOAD_MANAGER_DELEGATE_H_