Add ash UI for third-party VPNs

ui/chromeos/network/network_list.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_H_
 #define UI_CHROMEOS_NETWORK_NETWORK_LIST_H_
 
 #include <map>
 #include <set>
 #include <string>
 
 #include "chromeos/network/network_state_handler.h"
 #include "ui/chromeos/network/network_icon_animation_observer.h"
+#include "ui/chromeos/network/network_list_view_base.h"
 #include "ui/chromeos/ui_chromeos_export.h"
 #include "ui/gfx/image/image_skia.h"
 
 namespace views {
 class Label;
 class View;
 }
 
 namespace ui {
 
 struct NetworkInfo;
 class NetworkListDelegate;
 
-// NetworkListView can be used to present the list of available networks to the
-// user.
+// A list of available networks of a given type. This class is used for all
+// network types except VPNs. For VPNs, see the |VPNList| class.
 class UI_CHROMEOS_EXPORT NetworkListView
-    : public network_icon::AnimationObserver {
+    : public NetworkListViewBase,
+      public network_icon::AnimationObserver {
  public:
   explicit NetworkListView(NetworkListDelegate* delegate);
   ~NetworkListView() override;
 
-  void UpdateNetworkList();
-
-  // Returns whether |view| is a View that represents a network in the list.
-  // |service_path| is set to the service-path of the network if this returns
-  // true, and remains unchanged if this returns false.
-  bool IsViewInList(views::View* view, std::string* service_path) const;
-
-  void set_content_view(views::View* content) { content_ = content; }
+  // NetworkListViewBase:
+  void Update() override;
+  bool IsNetworkEntry(views::View* view,
+                      std::string* service_path) const override;
 
  private:
   void UpdateNetworks(
       const chromeos::NetworkStateHandler::NetworkStateList& networks);
   void UpdateNetworkIcons();
   void UpdateNetworkListInternal();
   void HandleRelayout();
   bool UpdateNetworkListEntries(std::set<std::string>* new_service_paths);
   bool UpdateNetworkChildren(std::set<std::string>* new_service_paths,
                              int* child_index,
                              bool highlighted);
   bool UpdateNetworkChild(int index, const NetworkInfo* info);
   bool PlaceViewAtIndex(views::View* view, int index);
   bool UpdateInfoLabel(int message_id, int index, views::Label** label);
 
   // network_icon::AnimationObserver:
   void NetworkIconChanged() override;
 
   NetworkListDelegate* delegate_;
-  views::View* content_;
 
   views::Label* scanning_view_;
   views::Label* no_wifi_networks_view_;
   views::Label* no_cellular_networks_view_;
 
   // An owned list of network info.
   ScopedVector<NetworkInfo> network_list_;
 
   typedef std::map<views::View*, std::string> NetworkMap;
   NetworkMap network_map_;
 
   // A map of network service paths to their view.
   typedef std::map<std::string, views::View*> ServicePathMap;
   ServicePathMap service_path_map_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkListView);
 };
 
 }  // namespace ui
 
 #endif  // UI_CHROMEOS_NETWORK_NETWORK_LIST_H_