[mutter] window: Add accessor method for gtk_theme_variant

[Florian Müllner <fmuellner src gnome org>]

commit 0a9187a6e9c3852f6f82e2d04c6da205f1983dc3
Author: Florian Müllner <fmuellner gnome org>
Date:   Sun May 25 16:57:15 2014 +0200

    window: Add accessor method for gtk_theme_variant
    
    This is useful information for UI associated with a window, so add
    a corresponding method.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=730752

 src/core/window.c |   12 ++++++++++++
 src/meta/window.h |    1 +
 2 files changed, 13 insertions(+), 0 deletions(-)
---
diff --git a/src/core/window.c b/src/core/window.c
index 1a1fca7..ed57797 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -7072,6 +7072,18 @@ meta_window_get_wm_class_instance (MetaWindow *window)
 }
 
 /**
+ * meta_window_get_gtk_theme_variant:
+ * @window: a #MetaWindow
+ *
+ * Return value: (transfer none): the theme variant or %NULL
+ **/
+const char *
+meta_window_get_gtk_theme_variant (MetaWindow *window)
+{
+  return window->gtk_theme_variant;
+}
+
+/**
  * meta_window_get_gtk_application_id:
  * @window: a #MetaWindow
  *
diff --git a/src/meta/window.h b/src/meta/window.h
index b1b68c6..1a60278 100644
--- a/src/meta/window.h
+++ b/src/meta/window.h
@@ -140,6 +140,7 @@ const char * meta_window_get_wm_class (MetaWindow *window);
 const char * meta_window_get_wm_class_instance (MetaWindow *window);
 gboolean    meta_window_showing_on_its_workspace (MetaWindow *window);
 
+const char * meta_window_get_gtk_theme_variant (MetaWindow *window);
 const char * meta_window_get_gtk_application_id (MetaWindow *window);
 const char * meta_window_get_gtk_unique_bus_name (MetaWindow *window);
 const char * meta_window_get_gtk_application_object_path (MetaWindow *window);