Convert //sandbox to use std::unique_ptr

sandbox/mac/mach_message_server.h

 // 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.
 
 #ifndef SANDBOX_MAC_MACH_MESSAGE_SERVER_H_
 #define SANDBOX_MAC_MACH_MESSAGE_SERVER_H_
 
 #include <mach/mach.h>
 #include <stddef.h>
 
+#include <memory>
+
 #include "base/mac/dispatch_source_mach.h"
 #include "base/mac/scoped_mach_port.h"
 #include "base/mac/scoped_mach_vm.h"
-#include "base/memory/scoped_ptr.h"
 #include "sandbox/mac/message_server.h"
 
 namespace sandbox {
 
 // A Mach message server that operates a receive port. Messages are received
 // and then passed to the MessageDemuxer for handling. The Demuxer
 // can use the server class to send a reply, forward the message to a
 // different port, or reply to the message with a MIG error.
 class MachMessageServer : public MessageServer {
  public:
@@ skipping 31 matching lines @@
   base::mac::ScopedMachReceiveRight server_port_;
 
   // The size of the two message buffers below.
   const mach_msg_size_t buffer_size_;
 
   // Request and reply buffers used in ReceiveMessage.
   base::mac::ScopedMachVM request_buffer_;
   base::mac::ScopedMachVM reply_buffer_;
 
   // MACH_RECV dispatch source that handles the |server_port_|.
-  scoped_ptr<base::DispatchSourceMach> dispatch_source_;
+  std::unique_ptr<base::DispatchSourceMach> dispatch_source_;
 
   // Whether or not ForwardMessage() was called during ReceiveMessage().
   bool did_forward_message_;
 };
 
 }  // namespace sandbox
 
 #endif  // SANDBOX_MAC_MACH_MESSAGE_SERVER_H_