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

ui/chromeos/network/network_list_view_base.h

Index: ui/chromeos/network/network_list_view_base.h
diff --git a/ui/chromeos/network/network_list_view_base.h b/ui/chromeos/network/network_list_view_base.h
index f6cf067ae6c85e2013fc614718ded7b265ff7438..e9b28bee49fb1fdcfda9cae3b843ca34f7842df0 100644
--- a/ui/chromeos/network/network_list_view_base.h
+++ b/ui/chromeos/network/network_list_view_base.h
@@ -35,10 +35,12 @@ class UI_CHROMEOS_EXPORT NetworkListViewBase {
                               std::string* service_path) const = 0;
 
  protected:
+  views::View* container() { return container_; }
+
+ private:
   // The container that holds the actual list entries.
   views::View* container_ = nullptr;
 
- private:
   DISALLOW_COPY_AND_ASSIGN(NetworkListViewBase);
 };