Convert //remoting to use std::unique_ptr

remoting/protocol/rejecting_authenticator.h

 // Copyright 2016 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.
 
 #ifndef REMOTING_PROTOCOL_REJECTING_AUTHENTICATOR_FACTORY_H_
 #define REMOTING_PROTOCOL_REJECTING_AUTHENTICATOR_FACTORY_H_
 
 #include <string>
 
 #include "base/macros.h"
 #include "remoting/protocol/authenticator.h"
 
 namespace remoting {
 namespace protocol {
 
 // Authenticator that accepts one message and rejects connection after that.
 class RejectingAuthenticator : public Authenticator {
  public:
   RejectingAuthenticator(RejectionReason rejection_reason);
   ~RejectingAuthenticator() override;
 
   // Authenticator interface
   State state() const override;
   bool started() const override;
   RejectionReason rejection_reason() const override;
   void ProcessMessage(const buzz::XmlElement* message,
                       const base::Closure& resume_callback) override;
-  scoped_ptr<buzz::XmlElement> GetNextMessage() override;
+  std::unique_ptr<buzz::XmlElement> GetNextMessage() override;
   const std::string& GetAuthKey() const override;
-  scoped_ptr<ChannelAuthenticator> CreateChannelAuthenticator() const override;
+  std::unique_ptr<ChannelAuthenticator> CreateChannelAuthenticator()
+      const override;
 
  private:
   RejectionReason rejection_reason_;
   State state_ = WAITING_MESSAGE;
   std::string auth_key_;
 
   DISALLOW_COPY_AND_ASSIGN(RejectingAuthenticator);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_REJECTING_AUTHENTICATOR_FACTORY_H_