Rename GDataFileSystem* to DriveFileSystem*

chrome/browser/download/save_package_file_picker_chromeos.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 CHROME_BROWSER_DOWNLOAD_SAVE_PACKAGE_FILE_PICKER_CHROMEOS_H_
 #define CHROME_BROWSER_DOWNLOAD_SAVE_PACKAGE_FILE_PICKER_CHROMEOS_H_
 
 #include "base/memory/ref_counted.h"
 #include "content/public/browser/download_manager_delegate.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "ui/base/dialogs/select_file_dialog.h"
 
-namespace gdata {
-class GDataFileSystem;
-}
-
 namespace ui {
 struct SelectedFileInfo;
 }
 
 // Handles showing a dialog to the user to ask for the filename to save a page
 // on ChromeOS.
 class SavePackageFilePickerChromeOS : public ui::SelectFileDialog::Listener,
                                       public content::WebContentsObserver {
  public:
   SavePackageFilePickerChromeOS(
@@ skipping 21 matching lines @@
   content::SavePackagePathPickedCallback callback_;
 
   // For managing select file dialogs.
   scoped_refptr<ui::SelectFileDialog> select_file_dialog_;
   FilePath selected_path_;
 
   DISALLOW_COPY_AND_ASSIGN(SavePackageFilePickerChromeOS);
 };
 
 #endif  // CHROME_BROWSER_DOWNLOAD_SAVE_PACKAGE_FILE_PICKER_CHROMEOS_H_