[metacity] libmetacity: add meta_theme_impl_set_scale

[Alberts Muktupāvels <muktupavels src gnome org>]

commit f978fa3fa08e6962712d221ba1ba4ca49fd95f11
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sun Apr 2 13:27:52 2017 +0300

    libmetacity: add meta_theme_impl_set_scale

 libmetacity/meta-theme-impl-private.h |    4 ++++
 libmetacity/meta-theme-impl.c         |   11 +++++++++++
 2 files changed, 15 insertions(+), 0 deletions(-)
---
diff --git a/libmetacity/meta-theme-impl-private.h b/libmetacity/meta-theme-impl-private.h
index 9227618..0a0ce20 100644
--- a/libmetacity/meta-theme-impl-private.h
+++ b/libmetacity/meta-theme-impl-private.h
@@ -80,6 +80,10 @@ G_GNUC_INTERNAL
 gboolean           meta_theme_impl_get_composited (MetaThemeImpl           *impl);
 
 G_GNUC_INTERNAL
+void               meta_theme_impl_set_scale      (MetaThemeImpl           *impl,
+                                                   gint                     scale);
+
+G_GNUC_INTERNAL
 gint               meta_theme_impl_get_scale      (MetaThemeImpl           *impl);
 
 G_GNUC_INTERNAL
diff --git a/libmetacity/meta-theme-impl.c b/libmetacity/meta-theme-impl.c
index 82cdb50..dbd91aa 100644
--- a/libmetacity/meta-theme-impl.c
+++ b/libmetacity/meta-theme-impl.c
@@ -106,6 +106,17 @@ meta_theme_impl_get_composited (MetaThemeImpl *impl)
   return priv->composited;
 }
 
+void
+meta_theme_impl_set_scale (MetaThemeImpl *impl,
+                           gint           scale)
+{
+  MetaThemeImplPrivate *priv;
+
+  priv = meta_theme_impl_get_instance_private (impl);
+
+  priv->scale = scale;
+}
+
 gint
 meta_theme_impl_get_scale (MetaThemeImpl *impl)
 {