Componentize HistoryDatabase

components/history/core/android/visit_sql_handler.h

-// Copyright (c) 2012 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_HISTORY_CORE_ANDROID_VISIT_SQL_HANDLER_H_
-#define COMPONENTS_HISTORY_CORE_ANDROID_VISIT_SQL_HANDLER_H_
-
-#include "components/history/core/android/sql_handler.h"
-
-namespace base {
-class Time;
-}
-
-namespace history {
-
-class URLDatabase;
-class VisitDatabase;
-
-// This class is the SQLHandler for visits table.
-class VisitSQLHandler : public SQLHandler {
- public:
-  VisitSQLHandler(URLDatabase* url_db, VisitDatabase* visit_db);
-  virtual ~VisitSQLHandler();
-
-  // Overriden from SQLHandler.
-  virtual bool Update(const HistoryAndBookmarkRow& row,
-                      const TableIDRows& ids_set) override;
-  virtual bool Insert(HistoryAndBookmarkRow* row) override;
-  virtual bool Delete(const TableIDRows& ids_set) override;
-
- private:
-  // Add a row in visit table with the given |url_id| and |visit_time|.
-  bool AddVisit(URLID url_id, const base::Time& visit_time);
-
-  // Add the given |visit_count| rows for |url_id|. The visit time of each row
-  // has minium difference and ends with the |last_visit_time|.
-  bool AddVisitRows(URLID url_id,
-                    int visit_count,
-                    const base::Time& last_visit_time);
-
-  // Delete the visits of the given |url_id|.
-  bool DeleteVisitsForURL(URLID url_id);
-
-  URLDatabase* url_db_;
-  VisitDatabase* visit_db_;
-
-  DISALLOW_COPY_AND_ASSIGN(VisitSQLHandler);
-};
-
-}  // namespace history.
-
-#endif  // COMPONENTS_HISTORY_CORE_ANDROID_VISIT_SQL_HANDLER_H_