| // Copyright 2015 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 "components/sync/model/mutable_data_batch.h" | 
 |  | 
 | namespace syncer { | 
 |  | 
 | MutableDataBatch::MutableDataBatch() {} | 
 |  | 
 | MutableDataBatch::~MutableDataBatch() {} | 
 |  | 
 | void MutableDataBatch::Put(const std::string& storage_key, | 
 |                            std::unique_ptr<EntityData> specifics) { | 
 |   key_data_pairs_.push_back(KeyAndData(storage_key, std::move(specifics))); | 
 | } | 
 |  | 
 | bool MutableDataBatch::HasNext() const { | 
 |   return key_data_pairs_.size() > read_index_; | 
 | } | 
 |  | 
 | KeyAndData MutableDataBatch::Next() { | 
 |   DCHECK(HasNext()); | 
 |   return std::move(key_data_pairs_[read_index_++]); | 
 | } | 
 |  | 
 | }  // namespace syncer |