[vino] Avoid a critical EggSMClient warning on startup

[David King <davidk src gnome org>]

commit 9fa956adc7af65be0828f68237e716bdc1edfad1
Author: David King <amigadave amigadave com>
Date:   Tue Feb 24 15:02:41 2015 +0000

    Avoid a critical EggSMClient warning on startup
    
    https://bugzilla.gnome.org/show_bug.cgi?id=662074

 server/vino-main.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/server/vino-main.c b/server/vino-main.c
index 1f2b2b1..dd95de7 100644
--- a/server/vino-main.c
+++ b/server/vino-main.c
@@ -252,6 +252,11 @@ main (int argc, char **argv)
       { NULL }
     };
 
+    /* Call this before parsing options, as that triggers creation of an SM
+     * client. Creating the client in a disabled state, and then switching to
+     * the real state later, avoids a critical warning on startup. */
+    egg_sm_client_set_mode (EGG_SM_CLIENT_MODE_DISABLED);
+
     context = g_option_context_new (_("- VNC Server for GNOME"));
     g_option_context_add_group (context, gtk_get_option_group (TRUE));
     g_option_context_add_group (context, egg_sm_client_get_option_group ());