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

ash/shelf/shelf_button.h

Index: ash/shelf/shelf_button.h
diff --git a/ash/common/shelf/shelf_button.h b/ash/shelf/shelf_button.h
similarity index 96%
rename from ash/common/shelf/shelf_button.h
rename to ash/shelf/shelf_button.h
index 4f828ea182e82010bffef022d7c3c08088e1a6b7..540d20ac1061d693f252ae6c7a8c648f7beed864 100644
--- a/ash/common/shelf/shelf_button.h
+++ b/ash/shelf/shelf_button.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_BUTTON_H_
-#define ASH_COMMON_SHELF_SHELF_BUTTON_H_
+#ifndef ASH_SHELF_SHELF_BUTTON_H_
+#define ASH_SHELF_SHELF_BUTTON_H_
 
 #include "ash/ash_export.h"
 #include "base/macros.h"
@@ -126,4 +126,4 @@ class ASH_EXPORT ShelfButton : public views::CustomButton {
 
 }  // namespace ash
 
-#endif  // ASH_COMMON_SHELF_SHELF_BUTTON_H_
+#endif  // ASH_SHELF_SHELF_BUTTON_H_