Cleanup usage of scoped_ptr<> in remoting for C++11

remoting/host/setup/me2me_native_messaging_host_main.cc

 // Copyright 2013 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/setup/me2me_native_messaging_host_main.h"
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/files/file.h"
 #include "base/i18n/icu_util.h"
@@ skipping 214 matching lines @@
       return kInitializationFailed;
     }
   }
 
   // Initialize the pairing registry delegate and set the root keys.
   scoped_ptr<PairingRegistryDelegateWin> delegate(
       new PairingRegistryDelegateWin());
   if (!delegate->SetRootKeys(privileged.Take(), unprivileged.Take()))
     return kInitializationFailed;
 
-  pairing_registry = new PairingRegistry(
-      io_thread.task_runner(),
-      delegate.PassAs<PairingRegistry::Delegate>());
+  pairing_registry =
+      new PairingRegistry(io_thread.task_runner(), delegate.Pass());
 #else  // defined(OS_WIN)
   pairing_registry =
       CreatePairingRegistry(io_thread.task_runner());
 #endif  // !defined(OS_WIN)
 
   // Set up the native messaging channel.
   scoped_ptr<extensions::NativeMessagingChannel> channel(
       new PipeMessagingChannel(read_file.Pass(), write_file.Pass()));
 
   // Create the native messaging host.
@@ skipping 16 matching lines @@
   // This object instance is required by Chrome code (such as MessageLoop).
   base::AtExitManager exit_manager;
 
   base::CommandLine::Init(argc, argv);
   remoting::InitHostLogging();
 
   return StartMe2MeNativeMessagingHost();
 }
 
 }  // namespace remoting