Change scoped_ptr to a type alias for std::unique_ptr on OS_WIN

remoting/host/input_injector_win.cc

 // Copyright (c) 2012 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 "remoting/host/input_injector.h"
 
 #include <stdint.h>
 #include <windows.h>
 
 #include <utility>
@@ skipping 344 matching lines @@
 // static
 scoped_ptr<InputInjector> InputInjector::Create(
     scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner) {
   return make_scoped_ptr(
       new InputInjectorWin(main_task_runner, ui_task_runner));
 }
 
 // static
 bool InputInjector::SupportsTouchEvents() {
-  return TouchInjectorWinDelegate::Create();
+  return TouchInjectorWinDelegate::Create() != nullptr;
 }
 
 }  // namespace remoting