Remove first_message argument from AuthenticatorFactory::Create().

remoting/protocol/fake_authenticator.cc

 // 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.
 
 #include "remoting/protocol/fake_authenticator.h"
 
 #include <utility>
 
 #include "base/base64.h"
 #include "base/callback_helpers.h"
@@ skipping 192 matching lines @@
 }
 
 FakeHostAuthenticatorFactory::FakeHostAuthenticatorFactory(
     int round_trips, int messages_till_started,
     FakeAuthenticator::Action action, bool async)
     : round_trips_(round_trips),
       messages_till_started_(messages_till_started),
       action_(action), async_(async) {
 }
 
-FakeHostAuthenticatorFactory::~FakeHostAuthenticatorFactory() {
-}
+FakeHostAuthenticatorFactory::~FakeHostAuthenticatorFactory() {}
 
 scoped_ptr<Authenticator> FakeHostAuthenticatorFactory::CreateAuthenticator(
     const std::string& local_jid,
-    const std::string& remote_jid,
-    const buzz::XmlElement* first_message) {
+    const std::string& remote_jid) {
   scoped_ptr<FakeAuthenticator> authenticator(new FakeAuthenticator(
       FakeAuthenticator::HOST, round_trips_, action_, async_));
   authenticator->set_messages_till_started(messages_till_started_);
   return std::move(authenticator);
 }
 
 }  // namespace protocol
 }  // namespace remoting