Added TCPServerSocket.

net/socket/tcp_client_socket_win.h

Index: net/socket/tcp_client_socket_win.h
diff --git a/net/socket/tcp_client_socket_win.h b/net/socket/tcp_client_socket_win.h
index aa8abd143f01eedb4bd1b639d87de63fa8eea77d..bca0d30cca2861432507d4788dbcaa77bb7d62b0 100644
--- a/net/socket/tcp_client_socket_win.h
+++ b/net/socket/tcp_client_socket_win.h
@@ -32,7 +32,8 @@ class TCPClientSocketWin : public ClientSocket, base::NonThreadSafe {
   // AdoptSocket causes the given, connected socket to be adopted as a TCP
   // socket. This object must not be connected. This object takes ownership of
   // the given socket and then acts as if Connect() had been called. This
-  // function is intended for testing only.
+  // function is used by TCPServerSocket() to adopt accepted connections
+  // and for testing.
   void AdoptSocket(SOCKET socket);
 
   // ClientSocket methods: