Remove some dead paint flags.

sky/engine/core/rendering/RenderBox.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 650 matching lines @@
     LayoutPoint adjustedPaintOffset = paintOffset + location();
     // default implementation. Just pass paint through to the children
     PaintInfo childInfo(paintInfo);
     childInfo.updatePaintingRootForChildren(this);
     for (RenderObject* child = slowFirstChild(); child; child = child->nextSibling())
         child->paint(childInfo, adjustedPaintOffset);
 }
 
 void RenderBox::paintRootBoxFillLayers(const PaintInfo& paintInfo)
 {
-    if (paintInfo.skipRootBackground())
-        return;
-
     const FillLayer& bgLayer = style()->backgroundLayers();
     Color bgColor = resolveColor(CSSPropertyBackgroundColor);
 
     paintFillLayers(paintInfo, bgColor, bgLayer, view()->backgroundRect(this), BackgroundBleedNone, this);
 }
 
 BackgroundBleedAvoidance RenderBox::determineBackgroundBleedAvoidance(GraphicsContext* context, const BoxDecorationData& boxDecorationData) const
 {
     if (!boxDecorationData.hasBackground || !boxDecorationData.hasBorder || !style()->hasBorderRadius() || canRenderBorderImage())
         return BackgroundBleedNone;
@@ skipping 2776 matching lines @@
 
 RenderBox::BoxDecorationData::BoxDecorationData(const RenderStyle& style)
 {
     backgroundColor = style.colorIncludingFallback(CSSPropertyBackgroundColor);
     hasBackground = backgroundColor.alpha() || style.hasBackgroundImage();
     ASSERT(hasBackground == style.hasBackground());
     hasBorder = style.hasBorder();
 }
 
 } // namespace blink