[metacity] theme: make meta_parse_size_expression static

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 9954832d0ee2cf8f464f2a7fa7c9cf9eaa94863f
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sun Jan 24 11:46:26 2016 +0200

    theme: make meta_parse_size_expression static

 src/ui/theme-private.h |    5 -----
 src/ui/theme.c         |    2 +-
 2 files changed, 1 insertions(+), 6 deletions(-)
---
diff --git a/src/ui/theme-private.h b/src/ui/theme-private.h
index c391929..1259a2f 100644
--- a/src/ui/theme-private.h
+++ b/src/ui/theme-private.h
@@ -751,11 +751,6 @@ void                   meta_color_spec_render                  (MetaColorSpec
                                                                 GtkStyleContext             *style_gtk,
                                                                 GdkRGBA                     *color);
 
-gboolean               meta_parse_size_expression              (MetaDrawSpec                *spec,
-                                                                const MetaPositionExprEnv   *env,
-                                                                int                         *val_return,
-                                                                GError                     **err);
-
 MetaDrawSpec          *meta_draw_spec_new                      (MetaTheme                   *theme,
                                                                 const char                  *expr,
                                                                 GError                     **error);
diff --git a/src/ui/theme.c b/src/ui/theme.c
index a11b8a0..c46d00b 100644
--- a/src/ui/theme.c
+++ b/src/ui/theme.c
@@ -2869,7 +2869,7 @@ meta_parse_position_expression (MetaDrawSpec              *spec,
 }
 
 
-gboolean
+static gboolean
 meta_parse_size_expression (MetaDrawSpec              *spec,
                             const MetaPositionExprEnv *env,
                             int                       *val_return,