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

ash/common/system/tray/default_system_tray_delegate.h

Index: ash/common/system/tray/default_system_tray_delegate.h
diff --git a/ash/system/tray/default_system_tray_delegate.h b/ash/common/system/tray/default_system_tray_delegate.h
similarity index 80%
rename from ash/system/tray/default_system_tray_delegate.h
rename to ash/common/system/tray/default_system_tray_delegate.h
index 6e9d6e9f74f91d3853ac0eb54f721b39e33d4b94..fc8926790443e439086ee0aabf4d9f02036e159b 100644
--- a/ash/system/tray/default_system_tray_delegate.h
+++ b/ash/common/system/tray/default_system_tray_delegate.h
@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_SYSTEM_TRAY_DEFAULT_SYSTEM_TRAY_DELEGATE_H_
-#define ASH_SYSTEM_TRAY_DEFAULT_SYSTEM_TRAY_DELEGATE_H_
+#ifndef ASH_COMMON_SYSTEM_TRAY_DEFAULT_SYSTEM_TRAY_DELEGATE_H_
+#define ASH_COMMON_SYSTEM_TRAY_DEFAULT_SYSTEM_TRAY_DELEGATE_H_
 
 #include "ash/ash_export.h"
-#include "ash/system/tray/system_tray_delegate.h"
+#include "ash/common/system/tray/system_tray_delegate.h"
 #include "base/macros.h"
 
 namespace ash {
@@ -37,4 +37,4 @@ class ASH_EXPORT DefaultSystemTrayDelegate : public SystemTrayDelegate {
 
 }  // namespace ash
 
-#endif  // ASH_SYSTEM_TRAY_DEFAULT_SYSTEM_TRAY_DELEGATE_H_
+#endif  // ASH_COMMON_SYSTEM_TRAY_DEFAULT_SYSTEM_TRAY_DELEGATE_H_