chromeos: Move files in //ash/common to //ash

ash/system/user/button_from_view.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_COMMON_SYSTEM_USER_BUTTON_FROM_VIEW_H_
-#define ASH_COMMON_SYSTEM_USER_BUTTON_FROM_VIEW_H_
+#ifndef ASH_SYSTEM_USER_BUTTON_FROM_VIEW_H_
+#define ASH_SYSTEM_USER_BUTTON_FROM_VIEW_H_
 
 #include <memory>
 
-#include "ash/common/system/tray/tray_popup_ink_drop_style.h"
+#include "ash/system/tray/tray_popup_ink_drop_style.h"
 #include "base/macros.h"
 #include "ui/views/controls/button/custom_button.h"
 
 namespace views {
 class InkDropContainerView;
 }  // namespace views
 
 namespace ash {
 namespace tray {
 
@@ skipping 45 matching lines @@
   views::InkDropContainerView* ink_drop_container_;
 
   std::unique_ptr<views::InkDropMask> ink_drop_mask_;
 
   DISALLOW_COPY_AND_ASSIGN(ButtonFromView);
 };
 
 }  // namespace tray
 }  // namespace ash
 
-#endif  // ASH_COMMON_SYSTEM_USER_BUTTON_FROM_VIEW_H_
+#endif  // ASH_SYSTEM_USER_BUTTON_FROM_VIEW_H_