chromium/third_party/blink/renderer/core/timing/layout_shift.h

// Copyright 2018 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_TIMING_LAYOUT_SHIFT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_TIMING_LAYOUT_SHIFT_H_

#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/dom/dom_high_res_time_stamp.h"
#include "third_party/blink/renderer/core/timing/layout_shift_attribution.h"
#include "third_party/blink/renderer/core/timing/performance_entry.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_vector.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"

namespace blink {

// Exposes the layout shift score of an animation frame, computed as described
// in http://bit.ly/lsm-explainer.
class CORE_EXPORT LayoutShift final : public PerformanceEntry { … };

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

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_TIMING_LAYOUT_SHIFT_H_