Move c/b/webdata/ code to components/webdata/

chrome/browser/webdata/web_database.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 CHROME_BROWSER_WEBDATA_WEB_DATABASE_H_
-#define CHROME_BROWSER_WEBDATA_WEB_DATABASE_H_
-
-#include <map>
-
-#include "base/memory/scoped_ptr.h"
-#include "chrome/browser/webdata/web_database_table.h"
-#include "sql/connection.h"
-#include "sql/init_status.h"
-#include "sql/meta_table.h"
-
-namespace base {
-class FilePath;
-}
-
-namespace content {
-class NotificationService;
-}
-
-// This class manages a SQLite database that stores various web page meta data.
-class WebDatabase {
- public:
-  enum State {
-    COMMIT_NOT_NEEDED,
-    COMMIT_NEEDED
-  };
-  // Exposed publicly so the keyword table can access it.
-  static const int kCurrentVersionNumber;
-
-  WebDatabase();
-  virtual ~WebDatabase();
-
-  // Adds a database table. Ownership remains with the caller, which
-  // must ensure that the lifetime of |table| exceeds this object's
-  // lifetime. Must only be called before Init.
-  void AddTable(WebDatabaseTable* table);
-
-  // Retrieves a table based on its |key|.
-  WebDatabaseTable* GetTable(WebDatabaseTable::TypeKey key);
-
-  // Initialize the database given a name. The name defines where the SQLite
-  // file is. If this returns an error code, no other method should be called.
-  //
-  // Before calling this method, you must call AddTable for any
-  // WebDatabaseTable objects that are supposed to participate in
-  // managing the database.
-  sql::InitStatus Init(const base::FilePath& db_name);
-
-  // Transactions management
-  void BeginTransaction();
-  void CommitTransaction();
-
-  // Exposed for testing only.
-  sql::Connection* GetSQLConnection();
-
- private:
-  // Used by |Init()| to migration database schema from older versions to
-  // current version.
-  sql::InitStatus MigrateOldVersionsAsNeeded();
-
-  sql::Connection db_;
-  sql::MetaTable meta_table_;
-
-  // Map of all the different tables that have been added to this
-  // object. Non-owning.
-  typedef std::map<WebDatabaseTable::TypeKey, WebDatabaseTable*> TableMap;
-  TableMap tables_;
-
-  scoped_ptr<content::NotificationService> notification_service_;
-
-  DISALLOW_COPY_AND_ASSIGN(WebDatabase);
-};
-
-#endif  // CHROME_BROWSER_WEBDATA_WEB_DATABASE_H_