chromeos: Refactor system tray Wi-Fi connect dialog so it works with mash

ash/mus/window_manager_application.h

 // Copyright 2015 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_MUS_WINDOW_MANAGER_APPLICATION_H_
 #define ASH_MUS_WINDOW_MANAGER_APPLICATION_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 29 matching lines @@
 class Event;
 class GpuService;
 class WindowTreeClient;
 }
 
 namespace ash {
 namespace mus {
 
 class AcceleratorRegistrarImpl;
 class NativeWidgetFactoryMus;
+class NetworkConnectDelegateMus;
 class WindowManager;
 
 // Hosts the window manager and the ash system user interface for mash.
 class WindowManagerApplication
     : public shell::Service,
       public shell::InterfaceFactory<mojom::WallpaperController>,
       public shell::InterfaceFactory<ui::mojom::AcceleratorRegistrar>,
       public mash::session::mojom::ScreenlockStateListener {
  public:
   WindowManagerApplication();
@@ skipping 48 matching lines @@
   mojo::BindingSet<mojom::WallpaperController> wallpaper_controller_bindings_;
 
   std::set<AcceleratorRegistrarImpl*> accelerator_registrars_;
 
   mash::session::mojom::SessionPtr session_;
 
   mojo::Binding<mash::session::mojom::ScreenlockStateListener>
       screenlock_state_listener_binding_;
 
 #if defined(OS_CHROMEOS)
-  class StubNetworkConnectDelegate;
-  std::unique_ptr<StubNetworkConnectDelegate> network_connect_delegate_;
+  std::unique_ptr<NetworkConnectDelegateMus> network_connect_delegate_;
   std::unique_ptr<chromeos::system::ScopedFakeStatisticsProvider>
       statistics_provider_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(WindowManagerApplication);
 };
 
 }  // namespace mus
 }  // namespace ash
 
 #endif  // ASH_MUS_WINDOW_MANAGER_APPLICATION_H_