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

ash/system/tray/tray_item_view.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_ITEM_VIEW_H_
-#define ASH_COMMON_SYSTEM_TRAY_TRAY_ITEM_VIEW_H_
+#ifndef ASH_SYSTEM_TRAY_TRAY_ITEM_VIEW_H_
+#define ASH_SYSTEM_TRAY_TRAY_ITEM_VIEW_H_
 
 #include <memory>
 
 #include "ash/ash_export.h"
 #include "base/macros.h"
 #include "ui/gfx/animation/animation_delegate.h"
 #include "ui/views/view.h"
 
 namespace gfx {
 class SlideAnimation;
@@ skipping 51 matching lines @@
   std::unique_ptr<gfx::SlideAnimation> animation_;
   // Only one of |label_| and |image_view_| should be non-null.
   views::Label* label_;
   views::ImageView* image_view_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayItemView);
 };
 
 }  // namespace ash
 
-#endif  // ASH_COMMON_SYSTEM_TRAY_TRAY_ITEM_VIEW_H_
+#endif  // ASH_SYSTEM_TRAY_TRAY_ITEM_VIEW_H_