| // Copyright 2016 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_DOWNGRADE_USER_DATA_DOWNGRADE_H_ |
| #define CHROME_BROWSER_DOWNGRADE_USER_DATA_DOWNGRADE_H_ |
| |
| #include "base/files/file_path.h" |
| #include "base/version.h" |
| |
| namespace downgrade { |
| |
| // The suffix of pending deleted directory. |
| extern const base::FilePath::CharType kDowngradeDeleteSuffix[]; |
| // The name of "Last Version" file. |
| extern const base::FilePath::CharType kDowngradeLastVersionFile[]; |
| |
| // Moves aside all directories containing user data to prevent the browser from |
| // reading them when Chrome is downgraded from a higher version. When called |
| // early in startup, this will result in the browser performing first-run for |
| // the user. To avoid long-running I/O operations, this function merely moves |
| // directories aside. A subsequent call to DeleteMovedUserDataSoon (below) must |
| // be made later in startup to free up disk space. |
| void MoveUserDataForFirstRunAfterDowngrade(); |
| |
| // Update the content of "Last Version" file with current version number |
| // in |user_data_dir|. |
| void UpdateLastVersion(const base::FilePath& user_data_dir); |
| |
| // Get the content of "Last Version" file in |user_data_dir|. |
| base::Version GetLastVersion(const base::FilePath& user_data_dir); |
| |
| // Schedules a search for the removal of any directories moved aside by |
| // MoveUserDataForFirstRunAfterDowngrade. This operation is idempotent, |
| // and may be safely called when no such directories exist. |
| void DeleteMovedUserDataSoon(); |
| |
| // Returns true if Chrome is installed by MSI. |
| bool IsMSIInstall(); |
| |
| } // namespace downgrade |
| |
| #endif // CHROME_BROWSER_DOWNGRADE_USER_DATA_DOWNGRADE_H_ |