chromeos: Fix crash when clicking on networking menu under 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 88 matching lines @@
   std::unique_ptr<NetworkConnectDelegateMus> network_connect_delegate_;
   std::unique_ptr<chromeos::system::ScopedFakeStatisticsProvider>
       statistics_provider_;
 
   service_manager::BinderRegistry registry_;
 
   std::unique_ptr<ShellDelegate> shell_delegate_;
 
   const Config ash_config_;
 
+  // Whether this class initialized NetworkHandler and needs to clean it up.
+  bool network_handler_initialized_ = false;
+
+  // Whether this class initialized DBusThreadManager and needs to clean it up.
+  bool dbus_thread_manager_initialized_ = false;
+
   DISALLOW_COPY_AND_ASSIGN(WindowManagerApplication);
 };
 
 }  // namespace mus
 }  // namespace ash
 
 #endif  // ASH_MUS_WINDOW_MANAGER_APPLICATION_H_