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 indexed_db {
+
+enum TransactionMode {
+  TRANSACTION_READ_ONLY = 0,
+  TRANSACTION_READ_WRITE = 1,
+  TRANSACTION_VERSION_CHANGE = 2
+};
+
+enum CursorDirection {
+  CURSOR_NEXT = 0,
+  CURSOR_NEXT_NO_DUPLICATE = 1,
+  CURSOR_PREV = 2,
+  CURSOR_PREV_NO_DUPLICATE = 3,
+};
+
+enum CursorType {
+  CURSOR_KEY_AND_VALUE = 0,
+  CURSOR_KEY_ONLY
+};
+
+}  // namespace indexed_db
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_H_