Convert //remoting to use std::unique_ptr

remoting/test/app_remoting_sample_test_driver_environment.cc

 // Copyright 2015 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/ptr_util.h"
 #include "remoting/test/app_remoting_test_driver_environment.h"
 
 namespace remoting {
 namespace test {
 
-scoped_ptr<AppRemotingTestDriverEnvironment>
+std::unique_ptr<AppRemotingTestDriverEnvironment>
 CreateAppRemotingTestDriverEnvironment(
     const AppRemotingTestDriverEnvironment::EnvironmentOptions& options) {
-  return make_scoped_ptr<AppRemotingTestDriverEnvironment>(
+  return base::WrapUnique<AppRemotingTestDriverEnvironment>(
       new AppRemotingTestDriverEnvironment(options));
 }
 
 }  // namespace test
 }  // namespace remoting