Convert //remoting to use std::unique_ptr

remoting/host/it2me/it2me_confirmation_dialog_chromeos.cc

Index: remoting/host/it2me/it2me_confirmation_dialog_chromeos.cc
diff --git a/remoting/host/it2me/it2me_confirmation_dialog_chromeos.cc b/remoting/host/it2me/it2me_confirmation_dialog_chromeos.cc
index 4f3d57066e131f7c0360f49c9af3d38e068a0bd7..2aee3bae40a060a8ff046a4b5fb35468961c09a0 100644
--- a/remoting/host/it2me/it2me_confirmation_dialog_chromeos.cc
+++ b/remoting/host/it2me/it2me_confirmation_dialog_chromeos.cc
@@ -28,7 +28,7 @@ class It2MeConfirmationDialogChromeOS : public It2MeConfirmationDialog {
   // 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);
@@ -59,8 +59,9 @@ void It2MeConfirmationDialogChromeOS::OnMessageBoxResult(
                                        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());
 }