Notify calling web-app when Host plugin becomes connected to a client.

remoting/host/register_support_host_request.h

 // Copyright (c) 2011 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_SUPPORT_HOST_REGISTER_QUERY_H_
 #define REMOTING_HOST_SUPPORT_HOST_REGISTER_QUERY_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 35 matching lines @@
   // object. Caller must ensure that the callback object is valid
   // while signalling connection exists. Returns false on falure
   // (e.g. config is invalid). Callback is never called if the bot
   // malfunctions and doesn't respond to the request.
   bool Init(HostConfig* config, const RegisterCallback& callback);
 
   // HostStatusObserver implementation.
   virtual void OnSignallingConnected(SignalStrategy* signal_strategy,
                                      const std::string& full_jid) OVERRIDE;
   virtual void OnSignallingDisconnected() OVERRIDE;
+  virtual void OnAuthenticatedClientsChanged(int clients_connected) OVERRIDE;
   virtual void OnShutdown() OVERRIDE;
 
  private:
   void DoSend();
 
   // Caller owns the result.
   buzz::XmlElement* CreateRegistrationRequest(const std::string& jid);
   buzz::XmlElement* CreateSignature(const std::string& jid);
 
   void ProcessResponse(const buzz::XmlElement* response);
   bool ParseResponse(const buzz::XmlElement* response, std::string* support_id);
   void InvokeCallback(bool result, const std::string& support_id);
 
   MessageLoop* message_loop_;
   RegisterCallback callback_;
   scoped_ptr<IqRequest> request_;
   HostKeyPair key_pair_;
 
   DISALLOW_COPY_AND_ASSIGN(RegisterSupportHostRequest);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_SUPPORT_HOST_REGISTER_QUERY_H_