Keep only base/extractor.[cc|h].

recovery/lib/google_update_recovery.h

-// Copyright 2007-2009 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ========================================================================
-//
-// Defines the interface to the Google Update recovery mechanism to be included
-// in Google apps.
-
-#ifndef OMAHA_RECOVERY_LIB_GOOGLE_UPDATE_RECOVERY_H__
-#define OMAHA_RECOVERY_LIB_GOOGLE_UPDATE_RECOVERY_H__
-
-#include <tchar.h>
-#include <windows.h>
-
-#ifndef UNICODE
-#error The distributed library only supports UNICODE.
-#endif
-
-extern "C" {
-typedef HRESULT (*DownloadCallback)(const TCHAR* url,
-                                    const TCHAR* file_path,
-                                    void* context);
-
-// Determines whether there is a Code Red event for the current installation
-// and repairs it if necessary.
-// app_language should follow the external Internet standard
-// Best Common Practice (BCP) 47: http://www.rfc-editor.org/rfc/bcp/bcp47.txt
-// context can be NULL if download_callback does not use it.
-HRESULT FixGoogleUpdate(const TCHAR* app_guid,
-                        const TCHAR* app_version,
-                        const TCHAR* app_language,
-                        bool is_machine_app,
-                        DownloadCallback download_callback,
-                        void* context);
-}  // extern "C"
-
-#endif  // OMAHA_RECOVERY_LIB_GOOGLE_UPDATE_RECOVERY_H__