Refactor code for calculating background image geometry

Source/core/layout/LayoutBox.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 1161 matching lines @@
     }
 
     if (!style()->backgroundLayers().image() || style()->backgroundLayers().next()) {
         paintedExtent =  backgroundRect;
         return true;
     }
 
     BackgroundImageGeometry geometry;
     // TODO(jchaffraix): This function should be rethought as it's called during and outside
     // of the paint phase. Potentially returning different results at different phases.
-    BoxPainter::calculateBackgroundImageGeometry(*this, 0, GlobalPaintNormalPhase, style()->backgroundLayers(), backgroundRect, geometry);
+    geometry.calculate(*this, nullptr, GlobalPaintNormalPhase, style()->backgroundLayers(), backgroundRect);
     if (geometry.hasNonLocalGeometry())
         return false;
     paintedExtent = LayoutRect(geometry.destRect());
     return true;
 }
 
 bool LayoutBox::backgroundIsKnownToBeOpaqueInRect(const LayoutRect& localRect) const
 {
     if (isDocumentElement() || backgroundStolenForBeingBody())
         return false;
@@ skipping 3535 matching lines @@
     StyleImage* borderImage = style()->borderImage().image();
     return borderImage && borderImage->canRender(*this, style()->effectiveZoom()) && borderImage->isLoaded();
 }
 
 ShapeOutsideInfo* LayoutBox::shapeOutsideInfo() const
 {
     return ShapeOutsideInfo::isEnabledFor(*this) ? ShapeOutsideInfo::info(*this) : nullptr;
 }
 
 } // namespace blink