[Chromoting] Fix DCHECK when shutting down It2Me host from client side

remoting/host/it2me/it2me_host.h

 // Copyright 2013 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 REMOTING_HOST_IT2ME_IT2ME_HOST_H_
 #define REMOTING_HOST_IT2ME_IT2ME_HOST_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 121 matching lines @@
   void OnPolicyUpdate(std::unique_ptr<base::DictionaryValue> policies);
 
   // Called when malformed policies are detected.
   void OnPolicyError();
 
   // Handlers for NAT traversal and domain policies.
   void UpdateNatPolicy(bool nat_traversal_enabled);
   void UpdateHostDomainPolicy(const std::string& host_domain);
   void UpdateClientDomainPolicy(const std::string& client_domain);
 
-  void Shutdown();
+  void DisconnectOnNetworkThread();
 
   // Caller supplied fields.
   std::unique_ptr<ChromotingHostContext> host_context_;
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   base::WeakPtr<It2MeHost::Observer> observer_;
   XmppSignalStrategy::XmppServerConfig xmpp_server_config_;
   std::string directory_bot_jid_;
 
   It2MeHostState state_;
 
@@ skipping 53 matching lines @@
       const std::string& directory_bot_jid);
 
  private:
   policy::PolicyService* policy_service_;
   DISALLOW_COPY_AND_ASSIGN(It2MeHostFactory);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_IT2ME_IT2ME_HOST_H_