Convert //remoting to use std::unique_ptr

remoting/host/it2me/it2me_confirmation_dialog_chromeos.cc

 // 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/bind.h"
 #include "base/callback_helpers.h"
 #include "base/location.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 10 matching lines @@
   It2MeConfirmationDialogChromeOS();
   ~It2MeConfirmationDialogChromeOS() override;
 
   // It2MeConfirmationDialog implementation.
   void Show(const ResultCallback& callback) override;
 
  private:
   // Handles result from |message_box_|.
   void OnMessageBoxResult(MessageBox::Result result);
 
-  scoped_ptr<MessageBox> message_box_;
+  std::unique_ptr<MessageBox> message_box_;
   ResultCallback callback_;
 
   DISALLOW_COPY_AND_ASSIGN(It2MeConfirmationDialogChromeOS);
 };
 
 It2MeConfirmationDialogChromeOS::It2MeConfirmationDialogChromeOS() {}
 
 It2MeConfirmationDialogChromeOS::~It2MeConfirmationDialogChromeOS() {}
 
 void It2MeConfirmationDialogChromeOS::Show(const ResultCallback& callback) {
@@ skipping 10 matching lines @@
   message_box_->Show();
 }
 
 void It2MeConfirmationDialogChromeOS::OnMessageBoxResult(
     MessageBox::Result result) {
   message_box_->Hide();
   base::ResetAndReturn(&callback_).Run(result == MessageBox::OK ?
                                        Result::OK : Result::CANCEL);
 }
 
-scoped_ptr<It2MeConfirmationDialog> It2MeConfirmationDialogFactory::Create() {
-  return scoped_ptr<It2MeConfirmationDialog>(
+std::unique_ptr<It2MeConfirmationDialog>
+It2MeConfirmationDialogFactory::Create() {
+  return std::unique_ptr<It2MeConfirmationDialog>(
       new It2MeConfirmationDialogChromeOS());
 }
 
 }  // namespace remoting