Remove remaining calls to deprecated MessageLoop methods.

remoting/protocol/negotiating_authenticator_unittest.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 "base/bind.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
+#include "base/run_loop.h"
 #include "net/base/net_errors.h"
 #include "remoting/base/rsa_key_pair.h"
 #include "remoting/protocol/auth_util.h"
 #include "remoting/protocol/authenticator_test_base.h"
 #include "remoting/protocol/channel_authenticator.h"
 #include "remoting/protocol/connection_tester.h"
 #include "remoting/protocol/negotiating_authenticator_base.h"
 #include "remoting/protocol/negotiating_client_authenticator.h"
 #include "remoting/protocol/negotiating_host_authenticator.h"
 #include "remoting/protocol/pairing_registry.h"
@@ skipping 116 matching lines @@
     host_auth_ = host_->CreateChannelAuthenticator();
     RunChannelAuth(false);
 
     EXPECT_TRUE(client_socket_.get() != nullptr);
     EXPECT_TRUE(host_socket_.get() != nullptr);
 
     StreamConnectionTester tester(host_socket_.get(), client_socket_.get(),
                                   kMessageSize, kMessages);
 
     tester.Start();
-    message_loop_.Run();

[gab, 2016/06/30 20:28:18]

No longer using the member, maybe AuthenticatorTestBase can make it private?

Also note another weird use case here..: AuthenticatorTestBase will potentially
have a member which subclasses depend on but don't refer to.. 

[fdoray, 2016/07/04 13:59:46]

Done.

+    base::RunLoop().Run();
     tester.CheckResults();
   }
 
   NegotiatingAuthenticatorBase::Method current_method() {
     return client_as_negotiating_authenticator_->current_method_;
   }
 
   // Use a bare pointer because the storage is managed by the base class.
   NegotiatingHostAuthenticator* host_as_negotiating_authenticator_;
   NegotiatingClientAuthenticator* client_as_negotiating_authenticator_;
@@ skipping 154 matching lines @@
 TEST_P(NegotiatingPairingAuthenticatorTest, PairingFailedInvalidSecretAndPin) {
   CreatePairingRegistry(true);
   ASSERT_NO_FATAL_FAILURE(InitAuthenticators(
       kTestClientId, kTestPairedSecretBad, kTestPinBad, kTestPin));
   ASSERT_NO_FATAL_FAILURE(RunAuthExchange());
   VerifyRejected(Authenticator::INVALID_CREDENTIALS);
 }
 
 }  // namespace protocol
 }  // namespace remoting