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diff --git a/third_party/libjingle/files/talk/base/asynctcpsocket.h b/third_party/libjingle/files/talk/base/asynctcpsocket.h
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+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef TALK_BASE_ASYNCTCPSOCKET_H__
+#define TALK_BASE_ASYNCTCPSOCKET_H__
+
+#include "talk/base/asyncpacketsocket.h"
+
+namespace talk_base {
+
+// Simulates UDP semantics over TCP.  Send and Recv packet sizes
+// are preserved, and drops packets silently on Send, rather than
+// buffer them in user space.
+class AsyncTCPSocket : public AsyncPacketSocket {
+public:
+  AsyncTCPSocket(AsyncSocket* socket);
+  virtual ~AsyncTCPSocket();
+
+  virtual int Send(const void *pv, size_t cb);
+  virtual int SendTo(const void *pv, size_t cb, const SocketAddress& addr);
+
+  sigslot::signal1<AsyncTCPSocket*> SignalConnect;
+  sigslot::signal2<AsyncTCPSocket*,int> SignalClose;
+
+protected:
+  int SendRaw(const void * pv, size_t cb);
+  virtual void ProcessInput(char * data, size_t& len);
+
+private:
+  char* inbuf_, * outbuf_;
+  size_t insize_, inpos_, outsize_, outpos_;
+
+  int Flush();
+
+  // Called by the underlying socket
+  void OnConnectEvent(AsyncSocket* socket);
+  void OnReadEvent(AsyncSocket* socket);
+  void OnWriteEvent(AsyncSocket* socket);
+  void OnCloseEvent(AsyncSocket* socket, int error);
+};
+
+} // namespace talk_base
+
+#endif // TALK_BASE_ASYNCTCPSOCKET_H__