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

ash/system/tray/tray_constants.h

 // Copyright (c) 2012 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_TRAY_TRAY_CONSTANTS_H_
-#define ASH_COMMON_SYSTEM_TRAY_TRAY_CONSTANTS_H_
+#ifndef ASH_SYSTEM_TRAY_TRAY_CONSTANTS_H_
+#define ASH_SYSTEM_TRAY_TRAY_CONSTANTS_H_
 
 #include "ash/ash_export.h"
 
 typedef unsigned int SkColor;
 
 namespace ash {
 
 extern const int kPaddingFromRightEdgeOfScreenBottomAlignment;
 extern const int kPaddingFromBottomOfScreenBottomAlignment;
 extern const int kPaddingFromOuterEdgeOfLauncherVerticalAlignment;
@@ skipping 131 matching lines @@
 // The height of the system info row.
 extern const int kTrayPopupSystemInfoRowHeight;
 
 namespace test {
 const int kSettingsTrayItemViewId = 10000;
 const int kAccessibilityTrayItemViewId = 10001;
 }  // namespace test
 
 }  // namespace ash
 
-#endif  // ASH_COMMON_SYSTEM_TRAY_TRAY_CONSTANTS_H_
+#endif  // ASH_SYSTEM_TRAY_TRAY_CONSTANTS_H_