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

ash/shelf/shelf_background_animator_observer.h

Index: ash/shelf/shelf_background_animator_observer.h
diff --git a/ash/common/shelf/shelf_background_animator_observer.h b/ash/shelf/shelf_background_animator_observer.h
similarity index 78%
rename from ash/common/shelf/shelf_background_animator_observer.h
rename to ash/shelf/shelf_background_animator_observer.h
index bf8ca1050f8b0071f8f6ddeeeacee913b8292ec3..6c45073654b0131fc8acea7e8100e272c7612655 100644
--- a/ash/common/shelf/shelf_background_animator_observer.h
+++ b/ash/shelf/shelf_background_animator_observer.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_COMMON_SHELF_SHELF_BACKGROUND_ANIMATOR_OBSERVER_H_
-#define ASH_COMMON_SHELF_SHELF_BACKGROUND_ANIMATOR_OBSERVER_H_
+#ifndef ASH_SHELF_SHELF_BACKGROUND_ANIMATOR_OBSERVER_H_
+#define ASH_SHELF_SHELF_BACKGROUND_ANIMATOR_OBSERVER_H_
 
 #include "ash/ash_export.h"
 #include "third_party/skia/include/core/SkColor.h"
@@ -25,4 +25,4 @@ class ASH_EXPORT ShelfBackgroundAnimatorObserver {
 
 }  // namespace ash
 
-#endif  // ASH_COMMON_SHELF_SHELF_BACKGROUND_ANIMATOR_OBSERVER_H_
+#endif  // ASH_SHELF_SHELF_BACKGROUND_ANIMATOR_OBSERVER_H_