Make spacing between uber tray items consistent with UI spec.

ash/system/network/tray_network.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_NETWORK_TRAY_NETWORK_H
 #define ASH_SYSTEM_NETWORK_TRAY_NETWORK_H
 
 #include "ash/system/network/network_observer.h"
 #include "ash/system/tray/system_tray_item.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 20 matching lines @@
   virtual views::View* CreateTrayView(user::LoginStatus status) OVERRIDE;
   virtual views::View* CreateDefaultView(user::LoginStatus status) OVERRIDE;
   virtual views::View* CreateDetailedView(user::LoginStatus status) OVERRIDE;
   virtual views::View* CreateNotificationView(
       user::LoginStatus status) OVERRIDE;
   virtual void DestroyTrayView() OVERRIDE;
   virtual void DestroyDefaultView() OVERRIDE;
   virtual void DestroyDetailedView() OVERRIDE;
   virtual void DestroyNotificationView() OVERRIDE;
   virtual void UpdateAfterLoginStatusChange(user::LoginStatus status) OVERRIDE;
+  virtual void UpdateAfterShelfAlignmentChange(
+      ShelfAlignment alignment) OVERRIDE;
 
   // Overridden from NetworkObserver.
   virtual void OnNetworkRefresh(const NetworkIconInfo& info) OVERRIDE;
   virtual void SetNetworkError(NetworkTrayDelegate* delegate,
                                ErrorType error_type,
                                const string16& title,
                                const string16& message,
                                const string16& link_text) OVERRIDE;
   virtual void ClearNetworkError(ErrorType error_type) OVERRIDE;
 
@@ skipping 11 matching lines @@
   tray::NetworkNotificationView* notification_;
   scoped_ptr<tray::NetworkErrors> errors_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayNetwork);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_NETWORK_TRAY_NETWORK_H