Use Authenticator interface in Session and SessionManager

remoting/host/simple_host_process.cc

Index: remoting/host/simple_host_process.cc
diff --git a/remoting/host/simple_host_process.cc b/remoting/host/simple_host_process.cc
index 293ad27c56d570129df73b4b0fe9dd943730eb92..c19a73c0dae0a3ca67a34dffa61e18b65a3988ac 100644
--- a/remoting/host/simple_host_process.cc
+++ b/remoting/host/simple_host_process.cc
@@ -223,7 +223,7 @@ class SimpleHost {
       std::cout << "Support id: " << access_code << std::endl;
 
       // Tell the ChromotingHost the access code, to use as shared-secret.
-      host_->set_access_code(access_code);
+      host_->SetSharedSecret(access_code);
     } else {
       LOG(ERROR) << "If you haven't done so recently, try running"
                  << " remoting/tools/register_host.py.";