[metacity] stack: add META_LAYER_OVERRIDE_REDIRECT enum

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 4eb7a815d33d8181eb917464f73850c83948aef2
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Mon Feb 27 19:18:56 2017 +0200

    stack: add META_LAYER_OVERRIDE_REDIRECT enum

 src/core/stack.h |   17 +++++++++--------
 1 files changed, 9 insertions(+), 8 deletions(-)
---
diff --git a/src/core/stack.h b/src/core/stack.h
index 4e409cd..43e0f67 100644
--- a/src/core/stack.h
+++ b/src/core/stack.h
@@ -47,14 +47,15 @@
  */
 typedef enum
 {
-  META_LAYER_DESKTOP        = 0,
-  META_LAYER_BOTTOM         = 1,
-  META_LAYER_NORMAL         = 2,
-  META_LAYER_TOP            = 4, /* Same as DOCK; see EWMH and bug 330717 */
-  META_LAYER_DOCK           = 4,
-  META_LAYER_FULLSCREEN     = 5,
-  META_LAYER_FOCUSED_WINDOW = 6,
-  META_LAYER_LAST           = 7
+  META_LAYER_DESKTOP           = 0,
+  META_LAYER_BOTTOM            = 1,
+  META_LAYER_NORMAL            = 2,
+  META_LAYER_TOP               = 4, /* Same as DOCK; see EWMH and bug 330717 */
+  META_LAYER_DOCK              = 4,
+  META_LAYER_FULLSCREEN        = 5,
+  META_LAYER_FOCUSED_WINDOW    = 6,
+  META_LAYER_OVERRIDE_REDIRECT = 7,
+  META_LAYER_LAST              = 8
 } MetaStackLayer;
 
 /**