chromium/third_party/blink/renderer/core/animation/underlying_value_owner.h

// Copyright 2016 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_ANIMATION_UNDERLYING_VALUE_OWNER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_UNDERLYING_VALUE_OWNER_H_

#include <memory>

#include "base/check_op.h"
#include "third_party/blink/renderer/core/animation/typed_interpolation_value.h"
#include "third_party/blink/renderer/core/animation/underlying_value.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"

namespace blink {

// Handles memory management of underlying InterpolationValues in applyStack()
// Ensures we perform copy on write if we are not the owner of an underlying
// InterpolationValue. This functions similar to a DataRef except on
// std::unique_ptr'd objects.
class CORE_EXPORT UnderlyingValueOwner : public UnderlyingValue { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_UNDERLYING_VALUE_OWNER_H_