Persist sessionStorage on disk.

webkit/dom_storage/dom_storage_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 WEBKIT_DOM_STORAGE_DOM_STORAGE_DATABASE_H_
 #define WEBKIT_DOM_STORAGE_DOM_STORAGE_DATABASE_H_
 #pragma once
 
 #include <map>
 
@@ skipping 30 matching lines @@
   bool CommitChanges(bool clear_all_first, const ValuesMap& changes);
 
   // Simple getter for the path we were constructed with.
   const FilePath& file_path() const { return file_path_; }
 
  protected:
   // Constructor that uses an in-memory sqlite database, for testing.
   DomStorageDatabase();
 
  private:
+  friend class LocalStorageDatabaseAdapter;
   FRIEND_TEST_ALL_PREFIXES(DomStorageDatabaseTest, SimpleOpenAndClose);
   FRIEND_TEST_ALL_PREFIXES(DomStorageDatabaseTest, TestLazyOpenIsLazy);
   FRIEND_TEST_ALL_PREFIXES(DomStorageDatabaseTest, TestDetectSchemaVersion);
   FRIEND_TEST_ALL_PREFIXES(DomStorageDatabaseTest,
                            TestLazyOpenUpgradesDatabase);
   FRIEND_TEST_ALL_PREFIXES(DomStorageDatabaseTest, SimpleWriteAndReadBack);
   FRIEND_TEST_ALL_PREFIXES(DomStorageDatabaseTest, WriteWithClear);
   FRIEND_TEST_ALL_PREFIXES(DomStorageDatabaseTest,
                            UpgradeFromV1ToV2WithData);
   FRIEND_TEST_ALL_PREFIXES(DomStorageDatabaseTest, TestSimpleRemoveOneValue);
@@ skipping 48 matching lines @@
   const FilePath file_path_;
   scoped_ptr<sql::Connection> db_;
   bool failed_to_open_;
   bool tried_to_recreate_;
   bool known_to_be_empty_;
 };
 
 }  // namespace dom_storage
 
 #endif  // WEBKIT_DOM_STORAGE_DOM_STORAGE_DATABASE_H_