ash: Some code-cleanup in the system-tray code.

ash/system/tray/system_tray_widget_delegate.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_STATUS_AREA_STATUS_AREA_VIEW_H_
-#define ASH_STATUS_AREA_STATUS_AREA_VIEW_H_
+#ifndef ASH_SYSTEM_TRAY_SYSTEM_TRAY_WIDGET_DELEGATE_H_
+#define ASH_SYSTEM_TRAY_SYSTEM_TRAY_WIDGET_DELEGATE_H_
 #pragma once
 
 #include "ash/ash_export.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/views/accessible_pane_view.h"
 #include "ui/views/widget/widget_delegate.h"
 
 namespace ash {
 namespace internal {
 
@@ skipping 22 matching lines @@
 
  private:
   const FocusCycler* focus_cycler_for_testing_;
 
   DISALLOW_COPY_AND_ASSIGN(StatusAreaView);
 };
 
 }  // namespace internal
 }  // namespace ash
 
-#endif  // ASH_STATUS_AREA_STATUS_AREA_VIEW_H_
+#endif  // ASH_SYSTEM_TRAY_SYSTEM_TRAY_WIDGET_DELEGATE_H_