[gtk+/gtk-style-context] Fix compile warnings

[Carlos Garnacho <carlosg src gnome org>]

commit beb2297d7e0f4f8296dc907cb8c3313632ac8667
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Nov 17 02:56:49 2010 +0100

    Fix compile warnings

 gtk/gtkthemingengine.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gtk/gtkthemingengine.c b/gtk/gtkthemingengine.c
index 41e3794..ad8ae01 100644
--- a/gtk/gtkthemingengine.c
+++ b/gtk/gtkthemingengine.c
@@ -2153,7 +2153,7 @@ gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
                                      gdouble           xy0_gap,
                                      gdouble           xy1_gap)
 {
-  GtkJunctionSides junction;
+  GtkJunctionSides junction = 0;
   GtkStateFlags state;
   gint border_width;
   GdkRGBA *bg_color;
@@ -2231,9 +2231,9 @@ gtk_theming_engine_render_extension (GtkThemingEngine *engine,
                                      gdouble           height,
                                      GtkPositionType   gap_side)
 {
-  GtkJunctionSides junction;
+  GtkJunctionSides junction = 0;
   GtkStateFlags state;
-  guint hidden_side;
+  guint hidden_side = 0;
   GdkRGBA *bg_color;
   gint radius;