Persist sessionStorage on disk.

webkit/dom_storage/dom_storage_database_adapter.cc

Index: webkit/dom_storage/dom_storage_database_adapter.cc
diff --git a/webkit/dom_storage/dom_storage_database_adapter.cc b/webkit/dom_storage/dom_storage_database_adapter.cc
new file mode 100644
index 0000000000000000000000000000000000000000..31454c664b4a70de5b9e20dadd7e7a3c97577b1f
--- /dev/null
+++ b/webkit/dom_storage/dom_storage_database_adapter.cc
@@ -0,0 +1,13 @@
+// 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.
+
+#include "webkit/dom_storage/dom_storage_database_adapter.h"
+
+namespace dom_storage {
+
+DomStorageDatabaseAdapter::DomStorageDatabaseAdapter() { }
+
+DomStorageDatabaseAdapter::~DomStorageDatabaseAdapter() { }
+
+}  // namespace dom_storage