Revert "Migrate the IndexedDB backend from Blink to Chromium"

content/browser/indexed_db/indexed_db_factory_impl.h

-// Copyright (c) 2013 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 CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_FACTORY_IMPL_H_
-#define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_FACTORY_IMPL_H_
-
-#include <map>
-#include <set>
-
-#include "base/basictypes.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "content/browser/indexed_db/indexed_db_callbacks_wrapper.h"
-#include "content/browser/indexed_db/indexed_db_database_callbacks_wrapper.h"
-#include "content/browser/indexed_db/indexed_db_factory.h"
-#include "content/common/content_export.h"
-
-namespace content {
-
-class IndexedDBBackingStore;
-class IndexedDBDatabaseImpl;
-
-class CONTENT_EXPORT IndexedDBFactoryImpl
-    : NON_EXPORTED_BASE(public IndexedDBFactory) {
- public:
-  static scoped_refptr<IndexedDBFactoryImpl> Create() {
-    return make_scoped_refptr(new IndexedDBFactoryImpl());
-  }
-
-  // Notifications from weak pointers.
-  virtual void RemoveIDBDatabaseBackend(const string16& unique_identifier);
-
-  virtual void GetDatabaseNames(
-      scoped_refptr<IndexedDBCallbacksWrapper> callbacks,
-      const string16& database_identifier,
-      const string16& data_dir) OVERRIDE;
-  virtual void Open(
-      const string16& name,
-      int64 version,
-      int64 transaction_id,
-      scoped_refptr<IndexedDBCallbacksWrapper> callbacks,
-      scoped_refptr<IndexedDBDatabaseCallbacksWrapper> database_callbacks,
-      const string16& database_identifier,
-      const string16& data_dir) OVERRIDE;
-
-  virtual void DeleteDatabase(
-      const string16& name,
-      scoped_refptr<IndexedDBCallbacksWrapper> callbacks,
-      const string16& database_identifier,
-      const string16& data_dir) OVERRIDE;
-
- protected:
-  IndexedDBFactoryImpl();
-  virtual ~IndexedDBFactoryImpl();
-  virtual scoped_refptr<IndexedDBBackingStore> OpenBackingStore(
-      const string16& database_identifier,
-      const string16& data_dir);
-
- private:
-  typedef std::map<string16, scoped_refptr<IndexedDBDatabaseImpl> >
-      IndexedDBDatabaseMap;
-  IndexedDBDatabaseMap database_backend_map_;
-
-  typedef std::map<string16, base::WeakPtr<IndexedDBBackingStore> >
-      IndexedDBBackingStoreMap;
-  IndexedDBBackingStoreMap backing_store_map_;
-
-  std::set<scoped_refptr<IndexedDBBackingStore> > session_only_backing_stores_;
-
-  // Only one instance of the factory should exist at any given time.
-  static IndexedDBFactoryImpl* idb_factory_backend_impl;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_FACTORY_IMPL_H_