Fix build error, empathy_theme_update_view return void.
Fix build error, empathy_theme_update_view return void.

svn path=/trunk/; revision=1517

Distrotech/telepathy-account-widgets,GNOME/telepathy-account-widgets,GNOME/telepathy-account-widgets,GNOME/telepathy-account-widgets,Distrotech/telepathy-account-widgets