chromium/third_party/blink/renderer/core/layout/custom/layout_custom.h

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_CUSTOM_LAYOUT_CUSTOM_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_CUSTOM_LAYOUT_CUSTOM_H_

#include "third_party/blink/renderer/core/layout/layout_block_flow.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"

namespace blink {

// The LayoutObject for elements which have "display: layout(foo);" specified.
// https://drafts.css-houdini.org/css-layout-api/
//
// This class inherits from LayoutBlockFlow so that when a web developer's
// intrinsicSizes/layout callback fails, it can fallback onto the "default"
// block-flow layout algorithm.
class LayoutCustom final : public LayoutBlockFlow { … };

template <>
struct DowncastTraits<LayoutCustom> { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_CUSTOM_LAYOUT_CUSTOM_H_