Convert //sync from scoped_ptr to std::unique_ptr

sync/internal_api/events/get_updates_response_event.cc

Index: sync/internal_api/events/get_updates_response_event.cc
diff --git a/sync/internal_api/events/get_updates_response_event.cc b/sync/internal_api/events/get_updates_response_event.cc
index 50bc551900fb953c4fdd274cd2dc3533f98bbd99..9fa4989c20c7f1372ab12bd8dcd3338f406c41a4 100644
--- a/sync/internal_api/events/get_updates_response_event.cc
+++ b/sync/internal_api/events/get_updates_response_event.cc
@@ -42,18 +42,15 @@ std::string GetUpdatesResponseEvent::GetDetails() const {
   }
 }
 
-scoped_ptr<base::DictionaryValue>
+std::unique_ptr<base::DictionaryValue>
 GetUpdatesResponseEvent::GetProtoMessage() const {
-  return scoped_ptr<base::DictionaryValue>(
+  return std::unique_ptr<base::DictionaryValue>(
       ClientToServerResponseToValue(response_, false));
 }
 
-scoped_ptr<ProtocolEvent> GetUpdatesResponseEvent::Clone() const {
-  return scoped_ptr<ProtocolEvent>(
-      new GetUpdatesResponseEvent(
-          timestamp_,
-          response_,
-          error_));
+std::unique_ptr<ProtocolEvent> GetUpdatesResponseEvent::Clone() const {
+  return std::unique_ptr<ProtocolEvent>(
+      new GetUpdatesResponseEvent(timestamp_, response_, error_));
 }
 
 }  // namespace syncer