Convert //remoting to use std::unique_ptr

remoting/signaling/mock_signal_strategy.h

 // Copyright 2014 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/memory/scoped_ptr.h"
+#include <memory>
+
 #include "remoting/signaling/iq_sender.h"
 #include "remoting/signaling/signal_strategy.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "third_party/webrtc/libjingle/xmllite/xmlelement.h"
 
 namespace remoting {
 
 class MockSignalStrategy : public SignalStrategy {
  public:
   MockSignalStrategy();
   ~MockSignalStrategy() override;
 
   MOCK_METHOD0(Connect, void());
   MOCK_METHOD0(Disconnect, void());
   MOCK_CONST_METHOD0(GetState, State());
   MOCK_CONST_METHOD0(GetError, Error());
   MOCK_CONST_METHOD0(GetLocalJid, std::string());
   MOCK_METHOD1(AddListener, void(Listener* listener));
   MOCK_METHOD1(RemoveListener, void(Listener* listener));
   MOCK_METHOD0(GetNextId, std::string());
 
   // GMock currently doesn't support move-only arguments, so we have
   // to use this hack here.
   MOCK_METHOD1(SendStanzaPtr, bool(buzz::XmlElement* stanza));
-  bool SendStanza(scoped_ptr<buzz::XmlElement> stanza) override {
+  bool SendStanza(std::unique_ptr<buzz::XmlElement> stanza) override {
     return SendStanzaPtr(stanza.release());
   }
 };
 
 }  // namespace remoting