Migrate the IndexedDB backend from Blink to Chromium

content/browser/indexed_db/indexed_db.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_H_
+#define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_H_
+
+namespace content {
+
+namespace IndexedDB {

[jamesr, 2013/05/21 23:56:06]

this is an unusual sort of namespace name for chromium code.
http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml#Namespace_Names
suggest namespace names should reflect directory structure and we don't have any
directories called IndexedDB in the tree

[jsbell, 2013/05/22 17:54:44]

Renamed to indexed_db; we considered putting everything into an indexed_db
namespace but that will touch existing files (e.g. common/indexed_db,
common_child/indexed_db) so we wanted to wait for later.

+
+enum TransactionMode {
+  TransactionReadOnly = 0,
+  TransactionReadWrite = 1,
+  TransactionVersionChange = 2
+};
+
+enum CursorDirection {
+  CursorNext = 0,
+  CursorNextNoDuplicate = 1,
+  CursorPrev = 2,
+  CursorPrevNoDuplicate = 3,
+};
+
+enum CursorType {
+  CursorKeyAndValue = 0,
+  CursorKeyOnly
+};
+
+}  // namespace IndexedDB
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_H_