[gtkmm] StyleContext: Add get/set_scale().

[Murray Cumming <murrayc src gnome org>]

commit b9beb37d9c2fa54ed3f63af0f2935e395b754940
Author: Murray Cumming <murrayc murrayc com>
Date:   Tue Mar 18 12:16:56 2014 +0100

    StyleContext: Add get/set_scale().

 gtk/src/stylecontext.hg |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gtk/src/stylecontext.hg b/gtk/src/stylecontext.hg
index 927af41..52791f0 100644
--- a/gtk/src/stylecontext.hg
+++ b/gtk/src/stylecontext.hg
@@ -138,6 +138,9 @@ public:
   _WRAP_METHOD(void set_state(StateFlags flags), gtk_style_context_set_state)
   _WRAP_METHOD(StateFlags get_state() const, gtk_style_context_get_state)
 
+  _WRAP_METHOD(void set_scale(int scale), gtk_style_context_set_scale)
+  _WRAP_METHOD(int get_scale() const, tk_style_context_get_scale)
+
   _WRAP_METHOD(bool state_is_running(StateType state, gdouble* progress), 
gtk_style_context_state_is_running, deprecated "This function always returns <tt>false</tt>.")
 
   _WRAP_METHOD(void set_path(const WidgetPath& path), gtk_style_context_set_path)