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

ash/common/system/tray_accessibility.h

Index: ash/common/system/tray_accessibility.h
diff --git a/ash/system/tray_accessibility.h b/ash/common/system/tray_accessibility.h
similarity index 91%
rename from ash/system/tray_accessibility.h
rename to ash/common/system/tray_accessibility.h
index bf28c1b26adff4c99182bd5d03bb1f5b89fb2a30..472ab0f944006c7895a6e73cd3aa4315bfe59b3d 100644
--- a/ash/system/tray_accessibility.h
+++ b/ash/common/system/tray_accessibility.h
@@ -2,17 +2,17 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_SYSTEM_TRAY_ACCESSIBILITY_H_
-#define ASH_SYSTEM_TRAY_ACCESSIBILITY_H_
+#ifndef ASH_COMMON_SYSTEM_TRAY_ACCESSIBILITY_H_
+#define ASH_COMMON_SYSTEM_TRAY_ACCESSIBILITY_H_
 
 #include <stdint.h>
 
 #include "ash/common/accessibility_delegate.h"
 #include "ash/common/shell_observer.h"
-#include "ash/system/accessibility_observer.h"
-#include "ash/system/tray/tray_details_view.h"
-#include "ash/system/tray/tray_image_item.h"
-#include "ash/system/tray/tray_notification_view.h"
+#include "ash/common/system/accessibility_observer.h"
+#include "ash/common/system/tray/tray_details_view.h"
+#include "ash/common/system/tray/tray_image_item.h"
+#include "ash/common/system/tray/tray_notification_view.h"
 #include "base/macros.h"
 #include "ui/gfx/font.h"
 #include "ui/views/controls/button/button.h"
@@ -148,4 +148,4 @@ class TrayAccessibility : public TrayImageItem, public AccessibilityObserver {
 
 }  // namespace ash
 
-#endif  // ASH_SYSTEM_TRAY_ACCESSIBILITY_H_
+#endif  // ASH_COMMON_SYSTEM_TRAY_ACCESSIBILITY_H_