[Sync] Fix sync lint errors/includes, update presubmit.

components/sync/engine_impl/loopback_server/loopback_server_entity.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 COMPONENTS_SYNC_ENGINE_IMPL_LOOPBACK_SERVER_LOOPBACK_SERVER_ENTITY_H_
 #define COMPONENTS_SYNC_ENGINE_IMPL_LOOPBACK_SERVER_LOOPBACK_SERVER_ENTITY_H_
 
 #include <stdint.h>
 
 #include <map>
+#include <memory>
 #include <string>
 
 #include "components/sync/base/model_type.h"
 #include "components/sync/protocol/loopback_server.pb.h"
 #include "components/sync/protocol/sync.pb.h"
 
 namespace syncer {
 
 // The representation of a Sync entity for the loopback server.
 class LoopbackServerEntity {
@@ skipping 64 matching lines @@
   // The name of the entity.
   std::string name_;
 
   // The EntitySpecifics for the entity.
   sync_pb::EntitySpecifics specifics_;
 };
 
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_ENGINE_IMPL_LOOPBACK_SERVER_LOOPBACK_SERVER_ENTITY_H_