[ticket/11700] Move all recent code to namespaces

PHPBB3-11700

phpBB/phpbb/db/driver/mssql_base.php

@@ -7,6 +7,8 @@
 *
 */
 
+namespace phpbb\db\driver;
+
 /**
 * @ignore
 */
@@ -19,7 +21,7 @@ if (!defined('IN_PHPBB'))
 * MSSQL Database Base Abstraction Layer
 * @package dbal
  */
-abstract class phpbb_db_driver_mssql_base extends phpbb_db_driver
+abstract class mssql_base extends \phpbb\db\driver\driver
 {
 	/**
 	* {@inheritDoc}