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diff --git a/remoting/protocol/fake_connection.h b/remoting/protocol/fake_connection.h
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+++ b/remoting/protocol/fake_connection.h
@@ -0,0 +1,94 @@
+// Copyright (c) 2010 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_PROTOCOL_FAKE_CONNECTION_H_
+#define REMOTING_PROTOCOL_FAKE_CONNECTION_H_
+
+#include <vector>
+
+#include "base/scoped_ptr.h"
+#include "net/socket/socket.h"
+#include "remoting/protocol/chromoting_connection.h"
+
+namespace remoting {
+
+extern const char kTestJid[];
+
+// FakeSocket implement net::Socket interface for FakeConnection. All data
+// written to FakeSocket is stored in a buffer returned by written_data().
+// Read() reads data from another buffer that can be set with AppendInputData().
+// Pending reads are supported, so if there is a pending read AppendInputData()
+// calls the read callback.
+class FakeSocket : public net::Socket {
+ public:
+  FakeSocket();
+  virtual ~FakeSocket();
+
+  const std::vector<char>& written_data() { return written_data_; }
+
+  void AppendInputData(char* data, int data_size);
+  int input_pos() { return input_pos_; }
+
+  // net::Socket interface.
+  virtual int Read(net::IOBuffer* buf, int buf_len,
+                   net::CompletionCallback* callback);
+  virtual int Write(net::IOBuffer* buf, int buf_len,
+                    net::CompletionCallback* callback);
+
+  virtual bool SetReceiveBufferSize(int32 size);
+  virtual bool SetSendBufferSize(int32 size);
+
+ private:
+  bool read_pending_;
+  scoped_refptr<net::IOBuffer> read_buffer_;
+  int read_buffer_size_;
+  net::CompletionCallback* read_callback_;
+
+  std::vector<char> written_data_;
+  std::vector<char> input_data_;
+  int input_pos_;
+};
+
+// FakeChromotingConnection is a dummy ChromotingConnection that uses
+// FakeSocket for all channels.
+class FakeChromotingConnection : public ChromotingConnection {
+ public:
+  FakeChromotingConnection();
+  virtual ~FakeChromotingConnection();
+
+  StateChangeCallback* get_state_change_callback() { return callback_.get(); }
+
+  void set_message_loop(MessageLoop* message_loop) {
+    message_loop_ = message_loop;
+  }
+
+  bool is_closed() { return closed_; }
+
+  virtual void SetStateChangeCallback(StateChangeCallback* callback);
+
+  virtual FakeSocket* GetVideoChannel();
+  virtual FakeSocket* GetEventsChannel();
+
+  virtual FakeSocket* GetVideoRtpChannel();
+  virtual FakeSocket* GetVideoRtcpChannel();
+
+  virtual const std::string& jid();
+
+  virtual MessageLoop* message_loop();
+  virtual void Close(Task* closed_task);
+
+ public:
+  scoped_ptr<StateChangeCallback> callback_;
+  MessageLoop* message_loop_;
+  FakeSocket video_channel_;
+  FakeSocket events_channel_;
+  FakeSocket video_rtp_channel_;
+  FakeSocket video_rtcp_channel_;
+  std::string jid_;
+  bool closed_;
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_PROTOCOL_FAKE_CONNECTION_H_