[gtk+] mir: enable csd

[Ryan Lortie <desrt src gnome org>]

commit 063f79b5946198eb5efec0133627a12a75d154a7
Author: William Hua <william attente ca>
Date:   Mon Nov 3 16:31:07 2014 -0500

    mir: enable csd

 gtk/gtkwindow.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index 76b59de..8c07e21 100644
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -79,6 +79,10 @@
 #include "broadway/gdkbroadway.h"
 #endif
 
+#ifdef GDK_WINDOWING_MIR
+#include "mir/gdkmir.h"
+#endif
+
 /**
  * SECTION:gtkwindow
  * @title: GtkWindow
@@ -5708,6 +5712,11 @@ gtk_window_should_use_csd (GtkWindow *window)
     return TRUE;
 #endif
 
+#ifdef GDK_WINDOWING_MIR
+  if (GDK_IS_MIR_DISPLAY (gtk_widget_get_display (GTK_WIDGET (window))))
+    return TRUE;
+#endif
+
   csd_env = g_getenv ("GTK_CSD");
 
   return (g_strcmp0 (csd_env, "1") == 0);