Remove old Authentication code that we don't use or need.

remoting/client/chromoting_client.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.
 
 // ChromotingClient is the controller for the Client implementation.
 
 #ifndef REMOTING_CLIENT_CHROMOTING_CLIENT_H_
 #define REMOTING_CLIENT_CHROMOTING_CLIENT_H_
 
 #include <list>
@@ skipping 46 matching lines @@
   ChromotingStats* GetStats();
 
   // Signals that the associated view may need updating.
   virtual void Repaint();
 
   // ConnectionToHost::HostEventCallback implementation.
   virtual void OnConnectionState(
       protocol::ConnectionToHost::State state,
       protocol::ConnectionToHost::Error error) OVERRIDE;
 
-  // ClientStub implementation.
-  virtual void BeginSessionResponse(const protocol::LocalLoginStatus* msg,
-                                    const base::Closure& done) OVERRIDE;
-
   // VideoStub implementation.
   virtual void ProcessVideoPacket(const VideoPacket* packet,
                                   const base::Closure& done) OVERRIDE;
   virtual int GetPendingPackets() OVERRIDE;
 
  private:
   struct QueuedVideoPacket {
     QueuedVideoPacket(const VideoPacket* packet, const base::Closure& done);
     ~QueuedVideoPacket();
     const VideoPacket* packet;
@@ skipping 46 matching lines @@
   ScopedThreadProxy thread_proxy_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromotingClient);
 };
 
 }  // namespace remoting
 
 DISABLE_RUNNABLE_METHOD_REFCOUNT(remoting::ChromotingClient);
 
 #endif  // REMOTING_CLIENT_CHROMOTING_CLIENT_H_