Enable V2 authentication for Me2Me host.

remoting/host/host_config.cc

Index: remoting/host/host_config.cc
diff --git a/remoting/host/host_config.cc b/remoting/host/host_config.cc
index 09ba8e376cf58d7af4f5cffd5c6f0b97beb2e18b..8841b8b1590923807411772647a47a3f702b710d 100644
--- a/remoting/host/host_config.cc
+++ b/remoting/host/host_config.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -12,6 +12,7 @@ const char kXmppAuthTokenConfigPath[] = "xmpp_auth_token";
 const char kXmppAuthServiceConfigPath[] = "xmpp_auth_service";
 const char kHostIdConfigPath[] = "host_id";
 const char kHostNameConfigPath[] = "host_name";
+const char kHostSecretHashConfigPath[] = "host_secret_hash";
 const char kPrivateKeyConfigPath[] = "private_key";
 
 }  // namespace remoting