Remove non-md code from tray_vpn.cc

ash/common/system/chromeos/network/network_icon.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_CHROMEOS_NETWORK_NETWORK_ICON_H_
 #define ASH_COMMON_SYSTEM_CHROMEOS_NETWORK_NETWORK_ICON_H_
 
 #include <string>
 
 #include "ash/ash_export.h"
@@ skipping 28 matching lines @@
 
 // Gets the disconnected image for a cell network.
 // TODO(estade): Expose SignalStrengthImageSource and use that instead.
 ASH_EXPORT gfx::ImageSkia GetImageForDisconnectedCellNetwork();
 
 // Gets the full strength image for a Wi-Fi network using |icon_color| for the
 // main icon and |badge_color| for the badge.
 ASH_EXPORT gfx::ImageSkia GetImageForNewWifiNetwork(SkColor icon_color,
                                                     SkColor badge_color);
 
-// Returns a vpn image suitable for use on a light background.
-ASH_EXPORT gfx::ImageSkia GetVpnImage();
-
 // Returns the label for |network| based on |icon_type|. |network| cannot be
 // nullptr.
 ASH_EXPORT base::string16 GetLabelForNetwork(
     const chromeos::NetworkState* network,
     IconType icon_type);
 
 // Updates and returns the appropriate message id if the cellular network
 // is uninitialized.
 ASH_EXPORT int GetCellularUninitializedMsg();
 
 // Gets the correct icon and label for |icon_type|. Also sets |animating|
 // based on whether or not the icon is animating (i.e. connecting).
 ASH_EXPORT void GetDefaultNetworkImageAndLabel(IconType icon_type,
                                                gfx::ImageSkia* image,
                                                base::string16* label,
                                                bool* animating);
 
 // Called when the list of networks changes. Retreives the list of networks
 // from the global NetworkStateHandler instance and removes cached entries
 // that are no longer in the list.
 ASH_EXPORT void PurgeNetworkIconCache();
 
 }  // namespace network_icon
 }  // namespace ash
 
 #endif  // ASH_COMMON_SYSTEM_CHROMEOS_NETWORK_NETWORK_ICON_H_