Convert //sync from scoped_ptr to std::unique_ptr

sync/internal_api/events/poll_get_updates_request_event.cc

 // 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.
 
 #include "sync/internal_api/public/events/poll_get_updates_request_event.h"
 
 #include "sync/protocol/proto_value_conversions.h"
 
 namespace syncer {
 
@@ skipping 10 matching lines @@
 }
 
 std::string PollGetUpdatesRequestEvent::GetType() const {
   return "Poll GetUpdate request";
 }
 
 std::string PollGetUpdatesRequestEvent::GetDetails() const {
   return std::string();
 }
 
-scoped_ptr<base::DictionaryValue>
+std::unique_ptr<base::DictionaryValue>
 PollGetUpdatesRequestEvent::GetProtoMessage() const {
-  return scoped_ptr<base::DictionaryValue>(
-    ClientToServerMessageToValue(request_, false));
+  return std::unique_ptr<base::DictionaryValue>(
+      ClientToServerMessageToValue(request_, false));
 }
 
-scoped_ptr<ProtocolEvent> PollGetUpdatesRequestEvent::Clone() const {
-  return scoped_ptr<ProtocolEvent>(
-      new PollGetUpdatesRequestEvent(
-          timestamp_,
-          request_));
+std::unique_ptr<ProtocolEvent> PollGetUpdatesRequestEvent::Clone() const {
+  return std::unique_ptr<ProtocolEvent>(
+      new PollGetUpdatesRequestEvent(timestamp_, request_));
 }
 
 }  // namespace syncer