[gtk+] GtkStyleContext: Use G_PARAM_EXPLICIT_NOTIFY

[Matthias Clasen <matthiasc src gnome org>]

commit b73e8106137564ed95cc5f8aa96d72f01722e8ee
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jun 9 09:42:05 2014 -0400

    GtkStyleContext: Use G_PARAM_EXPLICIT_NOTIFY

 gtk/gtkstylecontext.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkstylecontext.c b/gtk/gtkstylecontext.c
index 3da7d86..f75cf22 100644
--- a/gtk/gtkstylecontext.c
+++ b/gtk/gtkstylecontext.c
@@ -373,7 +373,8 @@ gtk_style_context_class_init (GtkStyleContextClass *klass)
                                                       P_("Text direction"),
                                                       GTK_TYPE_TEXT_DIRECTION,
                                                       GTK_TEXT_DIR_LTR,
-                                                      GTK_PARAM_READWRITE));
+                                                      GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
+
   /**
    * GtkStyleContext:parent:
    *