[Chromoting] Add a simple Windows app that registers and starts a host.

remoting/host/setup/host_starter.h

 // Copyright (c) 2012 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_HOST_STARTER
 #define REMOTING_HOST_HOST_STARTER
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 61 matching lines @@
   scoped_ptr<gaia::GaiaOAuthClient> oauth_client_;
   scoped_ptr<remoting::GaiaUserEmailFetcher> user_email_fetcher_;
   scoped_ptr<remoting::ServiceClient> service_client_;
   scoped_ptr<remoting::DaemonController> daemon_controller_;
   bool in_progress_;
   gaia::OAuthClientInfo oauth_client_info_;
   std::string host_name_;
   std::string host_pin_;
   bool consent_to_data_collection_;
   CompletionCallback on_done_;
+  scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
   std::string refresh_token_;
   std::string access_token_;
   std::string user_email_;
   remoting::HostKeyPair key_pair_;
   std::string host_id_;
 
+  base::WeakPtrFactory<HostStarter> weak_ptr_factory_;
+  base::WeakPtr<HostStarter> weak_ptr_;
+
   DISALLOW_COPY_AND_ASSIGN(HostStarter);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_HOST_STARTER