[ash-md] Adds Wi-Fi header row to system tray network detailed view

ui/chromeos/network/network_list_delegate.h

 // Copyright 2014 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 UI_CHROMEOS_NETWORK_NETWORK_LIST_DELEGATE_H_
 #define UI_CHROMEOS_NETWORK_NETWORK_LIST_DELEGATE_H_
 
 #include "ui/chromeos/ui_chromeos_export.h"
 
 namespace chromeos {
@@ skipping 29 matching lines @@
   virtual void UpdateViewForNetwork(views::View* view,
                                     const NetworkInfo& info) = 0;
 
   // Creates a Label to be displayed in the list to present some information
   // (e.g. unavailability of network etc.).
   virtual views::Label* CreateInfoLabel() = 0;
 
   // Called when the user clicks on an entry representing a network in the list.
   virtual void OnNetworkEntryClicked(views::View* sender) = 0;
 
+  // Called when the user clicks on a "Join Other" button.
+  virtual void OnOtherWifiClicked() = 0;
+
   virtual void RelayoutScrollList() = 0;
 };
 
 }  // namespace ui
 
 #endif  // UI_CHROMEOS_NETWORK_NETWORK_LIST_DELEGATE_H_