Verify that xmpp_login specified in the config matches auth token.

remoting/jingle_glue/signal_strategy.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_JINGLE_GLUE_SIGNAL_STRATEGY_H_
 #define REMOTING_JINGLE_GLUE_SIGNAL_STRATEGY_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 12 matching lines @@
     CONNECTING,
 
     // Signalling is connected.
     CONNECTED,
 
     // Connection is closed due to an error or because Disconnect()
     // was called.
     DISCONNECTED,
   };
 
+  enum Error {
+    OK,
+    AUTHENTICATION_FAILED,
+    NETWORK_ERROR,
+  };
+
   // Callback interface for signaling event. Event handlers are not
   // allowed to destroy SignalStrategy, but may add or remove other
   // listeners.
   class Listener {
    public:
     virtual ~Listener() {}
 
-    // Called after state of the connection has changed.
+    // Called after state of the connection has changed. If the state
+    // is DISCONNECTED, then GetError() can be used to get the reason
+    // for the disconnection.
     virtual void OnSignalStrategyStateChange(State state) {}
 
     // Must return true if the stanza was handled, false
     // otherwise. The signal strategy must not be deleted from a
     // handler of this message.
     virtual bool OnSignalStrategyIncomingStanza(
         const buzz::XmlElement* stanza) { return false; }
   };
 
   SignalStrategy() {}
   virtual ~SignalStrategy() {}
 
   // Starts connection attempt. If connection is currently active
   // disconnects it and opens a new connection (implicit disconnect
   // triggers CLOSED notification). Connection is finished
   // asynchronously.
   virtual void Connect() = 0;
 
   // Disconnects current connection if connected. Triggers CLOSED
   // notification.
   virtual void Disconnect() = 0;
 
   // Returns current state.
   virtual State GetState() const = 0;
 
+  // Returns the last error. Set when state changes to DISCONNECT.
+  virtual Error GetError() const = 0;
+
   // Returns local JID or an empty string when not connected.
   virtual std::string GetLocalJid() const = 0;
 
   // Add a |listener| that can listen to all incoming
   // messages. Doesn't take ownership of the |listener|. All listeners
   // must be removed before this object is destroyed.
   virtual void AddListener(Listener* listener) = 0;
 
   // Remove a |listener| previously added with AddListener().
   virtual void RemoveListener(Listener* listener) = 0;
 
   // Sends a raw XMPP stanza.
   virtual bool SendStanza(scoped_ptr<buzz::XmlElement> stanza) = 0;
 
   // Returns new ID that should be used for the next outgoing IQ
   // request.
   virtual std::string GetNextId() = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SignalStrategy);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_JINGLE_GLUE_SIGNAL_STRATEGY_H_