Convert //remoting to use std::unique_ptr

extensions/browser/api/messaging/native_messaging_channel.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 EXTENSIONS_BROWSER_API_MESSAGING_NATIVE_MESSAGING_CHANNEL_H_
 #define EXTENSIONS_BROWSER_API_MESSAGING_NATIVE_MESSAGING_CHANNEL_H_
 
 #include "base/callback.h"
+#include "base/memory/scoped_ptr.h"
 
 namespace base {
 class Value;
 }  // namespace base
 
 namespace extensions {
 
 // An interface to receive and send messages between a native component and
 // chrome.
 class NativeMessagingChannel {
@@ skipping 17 matching lines @@
   // Starts reading and processing messages.
   virtual void Start(EventHandler* event_handler) = 0;
 
   // Sends a message to the other endpoint.
   virtual void SendMessage(scoped_ptr<base::Value> message) = 0;
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_MESSAGING_NATIVE_MESSAGING_CHANNEL_H_