Move HostKeyPair into protocol::KeyPair.

remoting/protocol/me2me_host_authenticator_factory.cc

Index: remoting/protocol/me2me_host_authenticator_factory.cc
diff --git a/remoting/protocol/me2me_host_authenticator_factory.cc b/remoting/protocol/me2me_host_authenticator_factory.cc
index c871b6c5cfafeabcb2f54f2b216bf2392f16765b..9a04d89742cbf5131e04b80ea1447619af5b5697 100644
--- a/remoting/protocol/me2me_host_authenticator_factory.cc
+++ b/remoting/protocol/me2me_host_authenticator_factory.cc
@@ -6,7 +6,7 @@
 
 #include "base/base64.h"
 #include "base/string_util.h"
-#include "crypto/rsa_private_key.h"
+#include "remoting/base/rsa_key_pair.h"
 #include "remoting/protocol/channel_authenticator.h"
 #include "remoting/protocol/negotiating_authenticator.h"
 #include "third_party/libjingle/source/talk/xmllite/xmlelement.h"
@@ -60,10 +60,10 @@ class RejectingAuthenticator : public Authenticator {
 
 Me2MeHostAuthenticatorFactory::Me2MeHostAuthenticatorFactory(
     const std::string& local_cert,
-    const crypto::RSAPrivateKey& local_private_key,
+    scoped_refptr<RsaKeyPair> key_pair,
     const SharedSecretHash& shared_secret_hash)
     : local_cert_(local_cert),
-      local_private_key_(local_private_key.Copy()),
+      key_pair_(key_pair),
       shared_secret_hash_(shared_secret_hash) {
 }
 
@@ -92,7 +92,7 @@ scoped_ptr<Authenticator> Me2MeHostAuthenticatorFactory::CreateAuthenticator(
   }
 
   return NegotiatingAuthenticator::CreateForHost(
-      local_cert_, *local_private_key_, shared_secret_hash_.value,
+      local_cert_, key_pair_, shared_secret_hash_.value,
       shared_secret_hash_.hash_function);
 }