Fork a subset of ash/shelf for use in mash.

mash/shelf/shelf_types.h

Index: mash/shelf/shelf_types.h
diff --git a/ash/shelf/shelf_types.h b/mash/shelf/shelf_types.h
similarity index 85%
copy from ash/shelf/shelf_types.h
copy to mash/shelf/shelf_types.h
index 4ee3b94c09a94a373efb59163d8aed64c0351adf..e2a7ee4a6faab4f999f3ccf85db370d312f84aac 100644
--- a/ash/shelf/shelf_types.h
+++ b/mash/shelf/shelf_types.h
@@ -2,10 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_SHELF_SHELF_TYPES_H_
-#define ASH_SHELF_SHELF_TYPES_H_
+#ifndef MASH_SHELF_SHELF_TYPES_H_
+#define MASH_SHELF_SHELF_TYPES_H_
 
-namespace ash {
+namespace mash {
+namespace shelf {
 
 enum ShelfAlignment {
   SHELF_ALIGNMENT_BOTTOM,
@@ -52,6 +53,7 @@ enum ShelfBackgroundType {
   SHELF_BACKGROUND_MAXIMIZED,
 };
 
-}  // namespace ash
+}  // namespace shelf
+}  // namespace mash
 
-#endif  // ASH_SHELF_SHELF_TYPES_H_
+#endif  // MASH_SHELF_SHELF_TYPES_H_