2009-03-25  Vincent Untz  <vuntz@gnome.org>

	Allow XSMP clients to interact only during the
	GSM_MANAGER_PHASE_QUERY_END_SESSION phase. If they didn't interact
	during this phase, too bad for them.
	The idea is that GSM_MANAGER_PHASE_QUERY_END_SESSION is about letting
	them save user data and interact if it's needed for saving user data,
	while GSM_MANAGER_PHASE_END_SESSION is about telling them that they
	really have to save data now if they need too.

	Also if we have a queued SaveYourself, remember if it allowed
	interaction or not.

	* gnome-session/gsm-xsmp-client.c: (gsm_xsmp_client_init): initialize
	next_save_yourself_allow_interact
	(do_save_yourself): change forceful argument to allow_interact for
	better clarity, and save it to next_save_yourself_allow_interact when
	relevant
	(xsmp_cancel_end_session): reset next_save_yourself_allow_interact
	(xsmp_query_end_session): update for do_save_yourself() argument
	change, and also enforce the fact that we don't save the state of the
	client here
	(xsmp_end_session): force the client to not interact here
	(save_yourself_request_callback): update for do_save_yourself()
	argument change
	(save_yourself_done_callback): use next_save_yourself_allow_interact if
	there was a queued SaveYourself.

svn path=/trunk/; revision=5367