chromeos: Move files in //ash/common to //ash, part 1

ash/system/user/tray_user.h

Index: ash/system/user/tray_user.h
diff --git a/ash/common/system/user/tray_user.h b/ash/system/user/tray_user.h
similarity index 91%
rename from ash/common/system/user/tray_user.h
rename to ash/system/user/tray_user.h
index 2b3573d7f0c237d8bd7cf830516bc2edb677e3fe..d7aa60e1ff996adacd79528ad017ee4f108f5b8e 100644
--- a/ash/common/system/user/tray_user.h
+++ b/ash/system/user/tray_user.h
@@ -2,13 +2,13 @@
 // 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_TRAY_USER_H_
-#define ASH_COMMON_SYSTEM_USER_TRAY_USER_H_
+#ifndef ASH_SYSTEM_USER_TRAY_USER_H_
+#define ASH_SYSTEM_USER_TRAY_USER_H_
 
 #include "ash/ash_export.h"
-#include "ash/common/system/tray/system_tray_item.h"
-#include "ash/common/system/user/user_observer.h"
 #include "ash/public/cpp/session_types.h"
+#include "ash/system/tray/system_tray_item.h"
+#include "ash/system/user/user_observer.h"
 #include "base/macros.h"
 
 namespace gfx {
@@ -92,4 +92,4 @@ class ASH_EXPORT TrayUser : public SystemTrayItem, public UserObserver {
 
 }  // namespace ash
 
-#endif  // ASH_COMMON_SYSTEM_USER_TRAY_USER_H_
+#endif  // ASH_SYSTEM_USER_TRAY_USER_H_