face: Stop using shared_ptr to manage acceptors

This commit also includes a major cleanup of all channels.

Change-Id: I10db9709e0cba6a0691a86482c60b5dbb2956f68
Refs: #2613
diff --git a/tests/daemon/face/websocket.t.cpp b/tests/daemon/face/websocket.t.cpp
index 8e30517..e0472bc 100644
--- a/tests/daemon/face/websocket.t.cpp
+++ b/tests/daemon/face/websocket.t.cpp
@@ -23,7 +23,10 @@
  * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "face/websocket-channel.hpp"
+#include "face/websocket-face.hpp"
 #include "face/websocket-factory.hpp"
+
 #include "tests/test-common.hpp"
 #include "tests/limited-io.hpp"