Convert //extensions/browser/api from scoped_ptr to std::unique_ptr

extensions/browser/api/sockets_udp/udp_socket_event_dispatcher.h

Index: extensions/browser/api/sockets_udp/udp_socket_event_dispatcher.h
diff --git a/extensions/browser/api/sockets_udp/udp_socket_event_dispatcher.h b/extensions/browser/api/sockets_udp/udp_socket_event_dispatcher.h
index ff8f111c295e2a617164423ff5db69bb8dc37aae..dcc8b3970543bdee79e77fd895ffd38410fe140e 100644
--- a/extensions/browser/api/sockets_udp/udp_socket_event_dispatcher.h
+++ b/extensions/browser/api/sockets_udp/udp_socket_event_dispatcher.h
@@ -79,12 +79,13 @@ class UDPSocketEventDispatcher
                               uint16_t port);
 
   // Post an extension event from IO to UI thread
-  static void PostEvent(const ReceiveParams& params, scoped_ptr<Event> event);
+  static void PostEvent(const ReceiveParams& params,
+                        std::unique_ptr<Event> event);
 
   // Dispatch an extension event on to EventRouter instance on UI thread.
   static void DispatchEvent(void* browser_context_id,
                             const std::string& extension_id,
-                            scoped_ptr<Event> event);
+                            std::unique_ptr<Event> event);
 
   // Usually IO thread (except for unit testing).
   content::BrowserThread::ID thread_id_;