Add gnubby authentication to remoting host

remoting/host/gnubby_connection.h

Index: remoting/host/gnubby_connection.h
diff --git a/remoting/host/gnubby_connection.h b/remoting/host/gnubby_connection.h
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+++ b/remoting/host/gnubby_connection.h
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+// Copyright 2014 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_GNUBBY_CONNECTION_H_
+#define REMOTING_HOST_GNUBBY_CONNECTION_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/single_thread_task_runner.h"
+#include "net/base/io_buffer.h"
+#include "net/socket/stream_socket.h"
+
+namespace base {
+class SingleThreadTaskRunner;
+}  // namespace base
+
+namespace remoting {
+namespace protocol {
+class ClientStub;
+}  // namespace protocol
+
+class GnubbyAuthHandler;
+
+// Class responsible for a single gnubbyd connection.
+
+class GnubbyConnection {
+ public:
+  GnubbyConnection(
+      scoped_refptr<base::SingleThreadTaskRunner> network_task_runner,
+      GnubbyAuthHandler* auth_handler,
+      int connection_id,
+      net::StreamSocket* socket);
+
+  virtual ~GnubbyConnection();
+
+  // Read data from a gnubbyd connection.
+  virtual void Read();
+
+  // Write data to a gnubbyd connection.
+  virtual void Write(const std::string& data);
+
+ private:
+  // Called when gnubbyd sends data.
+  void OnRead(int result);
+
+  // Called when data sent to gnubbyd.
+  void OnWrite(int result);
+
+  // A socket error occurred.
+  void Error(int result);
+
+  // Task runner used by this class.
+  scoped_refptr<base::SingleThreadTaskRunner> network_task_runner_;
+
+  // The gnubby auth handler used to send messages to the webapp.
+  GnubbyAuthHandler* auth_handler_;
+
+  // The connection id.
+  int connection_id_;
+
+  // Socket that gnubbyd is connected to.
+  scoped_ptr<net::StreamSocket> socket_;
+
+  // Input I/O buffer for socket reads.
+  scoped_refptr<net::IOBufferWithSize> in_buffer_;
+
+  DISALLOW_COPY_AND_ASSIGN(GnubbyConnection);
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_HOST_GNUBBY_CONNECTION_H_