Make gdk_window_process_[all]_updates() respect update_freeze_counter

Make gdk_window_process_[all]_updates() respect update_freeze_counter

2004-08-26  Matthias Clasen  <mclasen@redhat.com>

	Make gdk_window_process_[all]_updates() respect
	update_freeze_counter  (#144272, Soeren Sandmann)

	* gdk/gdkwindow.c (gdk_window_schedule_update): New function to
	install an idle for gdk_window_update_idle() if one isn't there
	already.
	(gdk_window_process_all_updates):
	(gdk_window_process_updates): Only process the updates if the
	window isn't frozen.
	(gdk_window_invalidate_maybe_recurse): Schedule an update when
	necessary.
	(gdk_window_thaw_updates): Use gdk_window_schedule_update() instead
	of directly installing the idle.