[metacity] libmetacity: update titlebar style context

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 12b95c70cee3542dda31e192673752067e39d7c8
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Mon Jun 6 02:10:28 2016 +0300

    libmetacity: update titlebar style context

 libmetacity/meta-style-info.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libmetacity/meta-style-info.c b/libmetacity/meta-style-info.c
index 1b0777d..30ab687 100644
--- a/libmetacity/meta-style-info.c
+++ b/libmetacity/meta-style-info.c
@@ -175,7 +175,7 @@ meta_style_info_constructed (GObject *object)
 
   style_info->styles[META_STYLE_ELEMENT_TITLEBAR] =
     create_style_context (style_info,
-                          style_info->styles[META_STYLE_ELEMENT_DECORATION],
+                          style_info->styles[META_STYLE_ELEMENT_WINDOW],
                           "headerbar",
                           GTK_STYLE_CLASS_TITLEBAR,
                           GTK_STYLE_CLASS_HORIZONTAL,