Paint solid color backgrounds which are equivalent to locally attached into scrolling contents layer

third_party/WebKit/Source/core/style/ComputedStyle.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, 2009, 2010, 2011 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
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     // Background properties.
     // background-color
     static Color initialBackgroundColor() { return Color::transparent; }
     void setBackgroundColor(const StyleColor& v) { SET_VAR(m_background, m_color, v); }
 
     // background-image
     bool hasBackgroundImage() const { return m_background->background().hasImage(); }
     bool hasFixedBackgroundImage() const { return m_background->background().hasFixedImage(); }
     bool hasEntirelyFixedBackground() const;
-    bool hasEntirelyLocalBackground() const;
 
     // background-clip
     EFillBox backgroundClip() const { return static_cast<EFillBox>(m_background->background().clip()); }
 
     // Border properties.
     // -webkit-border-image
     static NinePieceImage initialNinePieceImage() { return NinePieceImage(); }
     const NinePieceImage& borderImage() const { return m_surround->border.image(); }
     void setBorderImage(const NinePieceImage& b) { SET_VAR(m_surround, border.m_image, b); }
 
@@ skipping 2065 matching lines @@
 }
 
 inline bool ComputedStyle::hasPseudoElementStyle() const
 {
     return m_nonInheritedData.m_pseudoBits & ElementPseudoIdMask;
 }
 
 } // namespace blink
 
 #endif // ComputedStyle_h