chromeos: Move files in //ash/common to //ash, part 2

ash/shelf/shelf_layout_manager_observer.h

Index: ash/shelf/shelf_layout_manager_observer.h
diff --git a/ash/common/shelf/shelf_layout_manager_observer.h b/ash/shelf/shelf_layout_manager_observer.h
similarity index 80%
rename from ash/common/shelf/shelf_layout_manager_observer.h
rename to ash/shelf/shelf_layout_manager_observer.h
index 00d03b13390ec42777dc602c152bf8ccc7c9d71a..8aac32dd8c8a685a954906316be5d4f3af3d859a 100644
--- a/ash/common/shelf/shelf_layout_manager_observer.h
+++ b/ash/shelf/shelf_layout_manager_observer.h
@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_COMMON_SHELF_SHELF_LAYOUT_MANAGER_OBSERVER_H_
-#define ASH_COMMON_SHELF_SHELF_LAYOUT_MANAGER_OBSERVER_H_
+#ifndef ASH_SHELF_SHELF_LAYOUT_MANAGER_OBSERVER_H_
+#define ASH_SHELF_SHELF_LAYOUT_MANAGER_OBSERVER_H_
 
 #include "ash/ash_export.h"
-#include "ash/common/shelf/shelf_background_animator.h"
 #include "ash/public/cpp/shelf_types.h"
+#include "ash/shelf/shelf_background_animator.h"
 
 namespace ash {
 
@@ -33,4 +33,4 @@ class ASH_EXPORT ShelfLayoutManagerObserver {
 
 }  // namespace ash
 
-#endif  // ASH_COMMON_SHELF_SHELF_LAYOUT_MANAGER_OBSERVER_H_
+#endif  // ASH_SHELF_SHELF_LAYOUT_MANAGER_OBSERVER_H_