File: StyleWillChangeData.h

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// Copyright 2014 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 StyleWillChangeData_h
#define StyleWillChangeData_h

#include "core/CSSPropertyNames.h"
#include "core/CSSValueKeywords.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"
#include "wtf/Vector.h"

namespace blink {

class StyleWillChangeData : public RefCounted<StyleWillChangeData> {
 public:
  static PassRefPtr<StyleWillChangeData> create() {
    return adoptRef(new StyleWillChangeData);
  }
  PassRefPtr<StyleWillChangeData> copy() const {
    return adoptRef(new StyleWillChangeData(*this));
  }

  bool operator==(const StyleWillChangeData& o) const {
    return m_properties == o.m_properties && m_contents == o.m_contents &&
           m_scrollPosition == o.m_scrollPosition;
  }

  bool operator!=(const StyleWillChangeData& o) const { return !(*this == o); }

  Vector<CSSPropertyID> m_properties;
  unsigned m_contents : 1;
  unsigned m_scrollPosition : 1;

 private:
  StyleWillChangeData();
  StyleWillChangeData(const StyleWillChangeData&);
};

}  // namespace blink

#endif  // StyleWillChangeData_h