face: UnixStream{Face,Channel,ChannelFactory} implementation.

refs: #1174

Change-Id: I14d1e357c96a02995355e7970323fe40847580aa
diff --git a/daemon/face/tcp-channel.hpp b/daemon/face/tcp-channel.hpp
index e94747f..4cca5c5 100644
--- a/daemon/face/tcp-channel.hpp
+++ b/daemon/face/tcp-channel.hpp
@@ -11,12 +11,12 @@
 #include "core/monotonic_deadline_timer.hpp"
 #include "tcp-face.hpp"
 
-namespace tcp {
-typedef boost::asio::ip::tcp::endpoint Endpoint;
-} // namespace tcp
-
 namespace nfd {
 
+namespace tcp {
+  typedef boost::asio::ip::tcp::endpoint Endpoint;
+} // namespace tcp
+
 /**
  * \brief Class implementing TCP-based channel to create faces
  *