Fix redrawing of a composited element with a filter.

Source/core/rendering/style/StyleRareNonInheritedData.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 66 matching lines @@
 
     bool operator==(const StyleRareNonInheritedData&) const;
     bool operator!=(const StyleRareNonInheritedData& o) const { return !(*this == o); }
 
     bool contentDataEquivalent(const StyleRareNonInheritedData&) const;
     bool counterDataEquivalent(const StyleRareNonInheritedData&) const;
     bool shadowDataEquivalent(const StyleRareNonInheritedData&) const;
     bool reflectionDataEquivalent(const StyleRareNonInheritedData&) const;
     bool animationDataEquivalent(const StyleRareNonInheritedData&) const;
     bool transitionDataEquivalent(const StyleRareNonInheritedData&) const;
+    bool hasFilters() const;
+    bool hasOpacity() const { return opacity < 1; }
 
     float opacity; // Whether or not we're transparent.
 
     float m_aspectRatioDenominator;
     float m_aspectRatioNumerator;
 
     float m_perspective;
     Length m_perspectiveOriginX;
     Length m_perspectiveOriginY;
 
@@ skipping 84 matching lines @@
     unsigned m_objectFit : 3; // ObjectFit
 
 private:
     StyleRareNonInheritedData();
     StyleRareNonInheritedData(const StyleRareNonInheritedData&);
 };
 
 } // namespace WebCore
 
 #endif // StyleRareNonInheritedData_h