Refactor SignalStrategy so that it can be reused for multiple connections.

remoting/jingle_glue/iq_sender.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_JINGLE_GLUE_IQ_SENDER_H_
 #define REMOTING_JINGLE_GLUE_IQ_SENDER_H_
 
 #include <map>
 #include <string>
 
@@ skipping 30 matching lines @@
                     const ReplyCallback& callback) WARN_UNUSED_RESULT;
 
   // Same as above, but also formats the message. Takes ownership of
   // |iq_body|.
   IqRequest* SendIq(const std::string& type,
                     const std::string& addressee,
                     buzz::XmlElement* iq_body,
                     const ReplyCallback& callback) WARN_UNUSED_RESULT;
 
   // SignalStrategy::Listener implementation.
-  virtual bool OnIncomingStanza(const buzz::XmlElement* stanza) OVERRIDE;
+  virtual void OnSignalStrategyStateChange(
+      SignalStrategy::State state) OVERRIDE;
+  virtual bool OnSignalStrategyIncomingStanza(
+      const buzz::XmlElement* stanza) OVERRIDE;
 
  private:
   typedef std::map<std::string, IqRequest*> IqRequestMap;
   friend class IqRequest;
 
   // Helper function used to create iq stanzas.
   static buzz::XmlElement* MakeIqStanza(const std::string& type,
                                         const std::string& addressee,
                                         buzz::XmlElement* iq_body);
 
@@ skipping 20 matching lines @@
 
   IqSender* sender_;
   IqSender::ReplyCallback callback_;
 
   DISALLOW_COPY_AND_ASSIGN(IqRequest);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_JINGLE_GLUE_IQ_SENDER_H_