Add abstract interfaces for the transport layer.

remoting/protocol/connection_to_host.cc

Index: remoting/protocol/connection_to_host.cc
diff --git a/remoting/protocol/connection_to_host.cc b/remoting/protocol/connection_to_host.cc
index 1ab6bd18d899f673643e1887e32573074c732379..f2d9297129bd19d41cd70fa64cbf334a68d5caee 100644
--- a/remoting/protocol/connection_to_host.cc
+++ b/remoting/protocol/connection_to_host.cc
@@ -16,8 +16,8 @@
 #include "remoting/protocol/client_control_dispatcher.h"
 #include "remoting/protocol/client_event_dispatcher.h"
 #include "remoting/protocol/client_stub.h"
-#include "remoting/protocol/jingle_session_manager.h"
 #include "remoting/protocol/pepper_session_manager.h"
+#include "remoting/protocol/pepper_transport_factory.h"
 #include "remoting/protocol/video_reader.h"
 #include "remoting/protocol/video_stub.h"
 #include "remoting/protocol/util.h"
@@ -78,7 +78,9 @@ void ConnectionToHost::Connect(scoped_refptr<XmppProxy> xmpp_proxy,
   signal_strategy_->AddListener(this);
   signal_strategy_->Connect();
 
-  session_manager_.reset(new PepperSessionManager(pp_instance_));
+  scoped_ptr<TransportFactory> transport_factory(
+      new PepperTransportFactory(pp_instance_));
+  session_manager_.reset(new PepperSessionManager(transport_factory.Pass()));
   session_manager_->Init(signal_strategy_.get(), this,
                          NetworkSettings(allow_nat_traversal_));
 }