[gtk+] Fix a mis-merge

[Matthias Clasen <matthiasc src gnome org>]

commit 495d00e92508f51ee400f82495b1b4a46d9e2a23
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Dec 20 10:36:25 2017 -0500

    Fix a mis-merge

 gtk/gtkcssstylepropertyimpl.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkcssstylepropertyimpl.c b/gtk/gtkcssstylepropertyimpl.c
index 65c27d8..6eb8d8d 100644
--- a/gtk/gtkcssstylepropertyimpl.c
+++ b/gtk/gtkcssstylepropertyimpl.c
@@ -663,6 +663,7 @@ parse_font_feature_settings (GtkCssStyleProperty *property,
   return gtk_css_font_features_value_parse (parser);
 }
 
+static GtkCssValue *
 box_shadow_value_parse (GtkCssStyleProperty *property,
                         GtkCssParser        *parser)
 {