Linux pairing registry delegate implementation

remoting/host/remoting_me2me_host.cc

Index: remoting/host/remoting_me2me_host.cc
diff --git a/remoting/host/remoting_me2me_host.cc b/remoting/host/remoting_me2me_host.cc
index 252390ab7f997413a65a0df8fde59a859ae06232..8775bfc776c4c7a6c57376916ca20fece146e4d4 100644
--- a/remoting/host/remoting_me2me_host.cc
+++ b/remoting/host/remoting_me2me_host.cc
@@ -58,6 +58,7 @@
 #include "remoting/host/logging.h"
 #include "remoting/host/me2me_desktop_environment.h"
 #include "remoting/host/network_settings.h"
+#include "remoting/host/pairing_registry_delegate.h"
 #include "remoting/host/policy_hack/policy_watcher.h"
 #include "remoting/host/service_urls.h"
 #include "remoting/host/session_manager_factory.h"
@@ -478,12 +479,9 @@ void HostProcess::CreateAuthenticatorFactory() {
 
   // TODO(jamiewalch): Add a pairing registry here once all the code
   // is committed.
-  scoped_refptr<remoting::protocol::PairingRegistry> pairing_registry;
-  //scoped_refptr<protocol::PairingRegistry> pairing_registry(
-  //    new protocol::PairingRegistry(
-  //        scoped_ptr<protocol::PairingRegistry::Delegate>(
-  //            new protocol::NotImplementedPairingRegistryDelegate),
-  //        protocol::PairingRegistry::PairedClients()));
+  scoped_refptr<remoting::protocol::PairingRegistry> pairing_registry(
+      new remoting::protocol::PairingRegistry(
+          CreatePairingRegistryDelegate(NULL)));
 
   scoped_ptr<protocol::AuthenticatorFactory> factory;