Convert //sandbox to use std::unique_ptr

sandbox/mac/xpc_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_XPC_MESSAGE_SERVER_H_
 #define SANDBOX_MAC_XPC_MESSAGE_SERVER_H_
 
 #include <AvailabilityMacros.h>
 
+#include <memory>
+
 #include "base/mac/dispatch_source_mach.h"
 #include "base/mac/scoped_mach_port.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "sandbox/mac/message_server.h"
 #include "sandbox/mac/xpc.h"
 #include "sandbox/sandbox_export.h"
 
 namespace sandbox {
 
 // An implementation of MessageServer that uses XPC pipes to read and write XPC
 // messages from a Mach port.
 class SANDBOX_EXPORT XPCMessageServer : public MessageServer {
  public:
@@ skipping 20 matching lines @@
   // Reads a message from the XPC pipe.
   void ReceiveMessage();
 
   // The demuxer delegate. Weak.
   MessageDemuxer* demuxer_;
 
   // The Mach port on which the server is receiving requests.
   base::mac::ScopedMachReceiveRight server_port_;
 
   // MACH_RECV dispatch source that handles the |server_port_|.
-  scoped_ptr<base::DispatchSourceMach> dispatch_source_;
+  std::unique_ptr<base::DispatchSourceMach> dispatch_source_;
 
   // The reply message, if one has been created.
   xpc_object_t reply_message_;
 
   DISALLOW_COPY_AND_ASSIGN(XPCMessageServer);
 };
 
 }  // namespace sandbox
 
 #endif  // SANDBOX_MAC_XPC_MESSAGE_SERVER_H_