Refactors DockedWindowLayoutManager in terms of ash/wm/common

ash/system/tray/tray_image_item.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_SYSTEM_TRAY_TRAY_IMAGE_ITEM_H_
 #define ASH_SYSTEM_TRAY_TRAY_IMAGE_ITEM_H_
 
 #include "ash/system/tray/system_tray_item.h"
 #include "base/macros.h"
 
@@ skipping 18 matching lines @@
   virtual bool GetInitialVisibility() = 0;
 
   // Overridden from SystemTrayItem.
   views::View* CreateTrayView(user::LoginStatus status) override;
   views::View* CreateDefaultView(user::LoginStatus status) override;
   views::View* CreateDetailedView(user::LoginStatus status) override;
   void DestroyTrayView() override;
   void DestroyDefaultView() override;
   void DestroyDetailedView() override;
   void UpdateAfterLoginStatusChange(user::LoginStatus status) override;
-  void UpdateAfterShelfAlignmentChange(ShelfAlignment alignment) override;
+  void UpdateAfterShelfAlignmentChange(wm::ShelfAlignment alignment) override;
 
  private:
   // Set the alignment of the image depending on the shelf alignment.
-  void SetItemAlignment(ShelfAlignment alignment);
+  void SetItemAlignment(wm::ShelfAlignment alignment);
 
   int resource_id_;
   TrayItemView* tray_view_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayImageItem);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_TRAY_IMAGE_ITEM_H_