Migrate the IndexedDB backend from Blink to Chromium

content/browser/indexed_db/webidbcursor_impl.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_WEBIDBCURSOR_IMPL_H_
+#define CONTENT_BROWSER_INDEXED_DB_WEBIDBCURSOR_IMPL_H_
+
+#include "base/memory/ref_counted.h"
+#include "third_party/WebKit/public/platform/WebIDBCursor.h"
+
+namespace content {
+class IndexedDBCursor;
+
+class WebIDBCursorImpl : public WebKit::WebIDBCursor {
+ public:
+  explicit WebIDBCursorImpl(scoped_refptr<IndexedDBCursor> cursor);
+  virtual ~WebIDBCursorImpl();
+
+  virtual void advance(unsigned long, WebKit::WebIDBCallbacks* callbacks);
+  virtual void continueFunction(const WebKit::WebIDBKey& key,
+                                WebKit::WebIDBCallbacks* callbacks);
+  virtual void deleteFunction(WebKit::WebIDBCallbacks* callbacks);
+  virtual void prefetchContinue(int number_to_fetch,
+                                WebKit::WebIDBCallbacks* callbacks);
+  virtual void prefetchReset(int used_prefetches, int unused_prefetches);
+
+ private:
+  scoped_refptr<IndexedDBCursor> idb_cursor_backend_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_INDEXED_DB_WEBIDBCURSOR_IMPL_H_