[login_manager] Add stub DBus API for policy get/set

interface.h

 // Copyright (c) 2010 The Chromium OS 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 LOGIN_MANAGER_INTERFACE_H_
 #define LOGIN_MANAGER_INTERFACE_H_
 
 #include <dbus/dbus-glib.h>
 #include <dbus/dbus-glib-bindings.h>
 #include <glib-object.h>
 #include <stdlib.h>
@@ skipping 62 matching lines @@
 gboolean session_manager_store_property(SessionManager *self,
                                         gchar *name,
                                         gchar *value,
                                         GArray *signature,
                                         GError **error);
 gboolean session_manager_retrieve_property(SessionManager *self,
                                            gchar *name,
                                            gchar **OUT_value,
                                            GArray **OUT_signature,
                                            GError **error);
+gboolean session_manager_store_policy(SessionManager *self,
+                                      gchar *policy_blob,
+                                      GArray *signature,
+                                      GError **error);
+gboolean session_manager_retrieve_policy(SessionManager *self,
+                                         gchar **OUT_policy_blob,
+                                         GArray **OUT_signature,
+                                         GError **error);
 
 gboolean session_manager_unlock_screen(SessionManager *self,
                                        GError **error);
 gboolean session_manager_lock_screen(SessionManager *self,
                                      GError **error);
 gboolean session_manager_restart_job(SessionManager *self,
                                      gint pid,
                                      gchar *arguments,
                                      gboolean *OUT_done,
                                      GError **error);
 gboolean session_manager_restart_entd(SessionManager* self,
                                       GError** error);
 }  // namespace gobject
 }  // namespace login_manager
 #endif  // LOGIN_MANAGER_INTERFACE_H_