Reading List create protobuf store

ios/chrome/browser/reading_list/reading_list_store.h

+// Copyright 2016 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 IOS_CHROME_BROWSER_READING_LIST_READING_LIST_STORE_H_
+#define IOS_CHROME_BROWSER_READING_LIST_READING_LIST_STORE_H_
+
+#include "base/containers/hash_tables.h"
+#include "base/files/file_path.h"
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "base/observer_list.h"
+#include "components/leveldb_proto/proto_database.h"
+#include "components/sync/protocol/reading_list_specifics.pb.h"
+#include "ios/chrome/browser/reading_list/reading_list_model_storage.h"
+#include "url/gurl.h"
+
+typedef leveldb_proto::ProtoDatabase<sync_pb::ReadingListLocal> ReadingListDB;

[jif-google, 2016/09/27 16:39:03]

s/typedef/using/

+
+class ReadingListStore : public ReadingListModelStorage {

[gambard, 2016/09/28 09:19:08]

Comment here and for the methods?

+  typedef std::vector<sync_pb::ReadingListLocal> EntryVector;
+
+ public:
+  ReadingListStore(std::unique_ptr<ReadingListDB> database,
+                   const base::FilePath& database_dir);
+  virtual ~ReadingListStore();
+
+  void SetReadingListModel(ReadingListModelImpl* model) override;
+
+  void BeginTransaction() override;
+  void CommitTransaction() override;
+
+  void LoadPersistentLists() override;
+  void SaveEntry(const ReadingListEntry& entry, bool read) override;
+  void RemoveEntry(const ReadingListEntry& entry) override;
+
+ private:
+  void OnDatabaseInit(bool success);
+  void OnDatabaseLoad(bool success, std::unique_ptr<EntryVector> entries);
+  void OnDatabaseSave(bool success);
+
+  std::unique_ptr<ReadingListDB> database_;
+  bool database_loaded_;
+  ReadingListModelImpl* model_;
+
+  int pending_transaction_;
+  std::unique_ptr<ReadingListDB::KeyEntryVector> pending_keys_to_save_;
+  std::unique_ptr<std::vector<std::string>> pending_keys_to_remove_;
+
+  base::WeakPtrFactory<ReadingListStore> weak_ptr_factory_;
+};
+
+#endif  // IOS_CHROME_BROWSER_READING_LIST_READING_LIST_STORE_H_