third_party/blink/renderer/core/css/cssom/cross_thread_style_value.h

// Copyright 2019 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 THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSSOM_CROSS_THREAD_STYLE_VALUE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSSOM_CROSS_THREAD_STYLE_VALUE_H_

#include "base/macros.h"
#include "third_party/blink/renderer/core/core_export.h"

namespace blink {

class CSSStyleValue;

// This class is designed for CSS Paint such that its instance can be safely
// passed cross threads.
class CORE_EXPORT CrossThreadStyleValue {
 public:
  virtual ~CrossThreadStyleValue() = default;

  virtual CSSStyleValue* ToCSSStyleValue() = 0;

 protected:
  CrossThreadStyleValue() = default;

 private:
  DISALLOW_COPY_AND_ASSIGN(CrossThreadStyleValue);
};

}  // namespace blink

#endif