[gtk+/gtk-style-context] GtkThemingEngine: Fix compile warning.

[Carlos Garnacho <carlosg src gnome org>]

commit 2ff8f92613e593d1eab7b36ca0379775f841175b
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Nov 3 21:12:57 2010 +0100

    GtkThemingEngine: Fix compile warning.

 gtk/gtkthemingengine.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkthemingengine.c b/gtk/gtkthemingengine.c
index f9a496c..1b41ff6 100644
--- a/gtk/gtkthemingengine.c
+++ b/gtk/gtkthemingengine.c
@@ -759,7 +759,7 @@ gtk_theming_module_load (GTypeModule *type_module)
 
   theming_module->module = module;
 
-  theming_module->init (theming_module);
+  theming_module->init (G_TYPE_MODULE (theming_module));
 
   return TRUE;
 }