mash: Move ash/common/wm/shelf to ash/common/shelf

ash/common/shelf/shelf_types.h

Index: ash/common/shelf/shelf_types.h
diff --git a/ash/shelf/shelf_types.h b/ash/common/shelf/shelf_types.h
similarity index 62%
rename from ash/shelf/shelf_types.h
rename to ash/common/shelf/shelf_types.h
index 4821ff037e69f7f0e37775108175bb5c8683fe64..5ee6818e956f2c6575f3292210789c829c6630d2 100644
--- a/ash/shelf/shelf_types.h
+++ b/ash/common/shelf/shelf_types.h
@@ -2,8 +2,8 @@
 // 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 ASH_COMMON_SHELF_SHELF_TYPES_H_
+#define ASH_COMMON_SHELF_SHELF_TYPES_H_
 
 // TODO(sky): make callers explicitly include this.
 #include "ash/common/wm/shelf/wm_shelf_types.h"
@@ -26,6 +26,17 @@ enum ShelfAutoHideState {
   SHELF_AUTO_HIDE_HIDDEN,
 };
 
+enum ShelfVisibilityState {
+  // Always visible.
+  SHELF_VISIBLE,
+
+  // A couple of pixels are reserved at the bottom for the shelf.
+  SHELF_AUTO_HIDE,
+
+  // Nothing is shown. Used for fullscreen windows.
+  SHELF_HIDDEN,
+};
+
 }  // namespace ash
 
-#endif  // ASH_SHELF_SHELF_TYPES_H_
+#endif  // ASH_COMMON_SHELF_SHELF_TYPES_H_