mustash: Fix crash when clicking on network in system tray

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 57 matching lines @@
  private:
   friend class WmTestBase;
   friend class WmTestHelper;
 
   void OnAcceleratorRegistrarDestroyed(AcceleratorRegistrarImpl* registrar);
 
   void InitWindowManager(
       std::unique_ptr<ui::WindowTreeClient> window_tree_client,
       const scoped_refptr<base::SequencedWorkerPool>& blocking_pool);
 
+  // Initializes lower-level OS-specific components (e.g. D-Bus services).
+  void InitializeComponents();
+  void ShutdownComponents();
+
   // shell::Service:
   void OnStart(const shell::Identity& identity) override;
   bool OnConnect(const shell::Identity& remote_identity,
                  shell::InterfaceRegistry* registry) override;
 
   // InterfaceFactory<mojom::ShelfController>:
   void Create(const shell::Identity& remote_identity,
               mojom::ShelfControllerRequest request) override;
 
   // InterfaceFactory<mojom::WallpaperController>:
@@ skipping 23 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<chromeos::system::ScopedFakeStatisticsProvider>
       statistics_provider_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(WindowManagerApplication);
 };
 
 }  // namespace mus
 }  // namespace ash
 
 #endif  // ASH_MUS_WINDOW_MANAGER_APPLICATION_H_