content/browser/dom_storage/dom_storage_database_adapter.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_DATABASE_ADAPTER_H_
   6 #define CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_DATABASE_ADAPTER_H_
   7
   8 // Database interface used by DOMStorageArea. Abstracts the differences between
   9 // the per-origin DOMStorageDatabases for localStorage and
  10 // SessionStorageDatabase which stores multiple origins.
  11
  12 #include "content/common/content_export.h"
  13 #include "content/common/dom_storage/dom_storage_types.h"
  14
  15 namespace content {
  16
  17 class CONTENT_EXPORT DOMStorageDatabaseAdapter {
  18  public:
  19   virtual ~DOMStorageDatabaseAdapter() {}
  20   virtual void ReadAllValues(DOMStorageValuesMap* result) = 0;
  21   virtual bool CommitChanges(
  22       bool clear_all_first, const DOMStorageValuesMap& changes) = 0;
  23   virtual void DeleteFiles() {}
  24   virtual void Reset() {}
  25 };
  26
  27 }  // namespace content
  28
  29 #endif  // CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_DATABASE_ADAPTER_H_