Convert //extensions/browser/api from scoped_ptr to 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 <memory>
+
 #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 {
  public:
   // Callback interface for the channel. EventHandler must outlive
   // NativeMessagingChannel.
   class EventHandler {
    public:
     // Called when a message is received from the other endpoint.
-    virtual void OnMessage(scoped_ptr<base::Value> message) = 0;
+    virtual void OnMessage(std::unique_ptr<base::Value> message) = 0;
 
     // Called when the channel is disconnected.
     // EventHandler is guaranteed not to be called after OnDisconnect().
     virtual void OnDisconnect() = 0;
 
     virtual ~EventHandler() {}
   };
 
   virtual ~NativeMessagingChannel() {}
 
   // 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;
+  virtual void SendMessage(std::unique_ptr<base::Value> message) = 0;
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_MESSAGING_NATIVE_MESSAGING_CHANNEL_H_