Move painting code from RenderBoxModelObject into BoxPainter.

Source/core/paint/BoxPainter.h

Index: Source/core/paint/BoxPainter.h
diff --git a/Source/core/paint/BoxPainter.h b/Source/core/paint/BoxPainter.h
index b67912d3848d5424b8f6f09dd59bd3e5f9c0acfc..29c08e67fd4156994975d97dc2308453eb4c3352 100644
--- a/Source/core/paint/BoxPainter.h
+++ b/Source/core/paint/BoxPainter.h
@@ -25,11 +25,23 @@ public:
     void paintFillLayers(const PaintInfo&, const Color&, const FillLayer&, const LayoutRect&, BackgroundBleedAvoidance = BackgroundBleedNone, CompositeOperator = CompositeSourceOver, RenderObject* backgroundObject = 0);
     void paintMaskImages(const PaintInfo&, const LayoutRect&);
     void paintBoxDecorationBackgroundWithRect(PaintInfo&, const LayoutPoint&, const LayoutRect&);
+    static void paintFillLayerExtended(RenderBoxModelObject&, const PaintInfo&, const Color&, const FillLayer&, const LayoutRect&, BackgroundBleedAvoidance, InlineFlowBox* = 0, const LayoutSize& = LayoutSize(), CompositeOperator = CompositeSourceOver, RenderObject* backgroundObject = 0, bool skipBaseColor = false);
+    static void calculateBackgroundImageGeometry(RenderBoxModelObject&, const RenderLayerModelObject* paintContainer, const FillLayer&, const LayoutRect& paintRect, BackgroundImageGeometry&, RenderObject* = 0);
+    static InterpolationQuality chooseInterpolationQuality(RenderBoxModelObject&, GraphicsContext*, Image*, const void*, const LayoutSize&);
+    static void clipRoundedInnerRect(GraphicsContext*, const LayoutRect&, const RoundedRect& clipRect);
 
 private:
     void paintBackground(const PaintInfo&, const LayoutRect&, const Color& backgroundColor, BackgroundBleedAvoidance = BackgroundBleedNone);
     void paintRootBoxFillLayers(const PaintInfo&);
     void paintFillLayer(const PaintInfo&, const Color&, const FillLayer&, const LayoutRect&, BackgroundBleedAvoidance, CompositeOperator, RenderObject* backgroundObject, bool skipBaseColor = false);
+    static void paintRootBackgroundColor(RenderObject&, const PaintInfo&, const LayoutRect&, const Color&);
+    static RoundedRect backgroundRoundedRectAdjustedForBleedAvoidance(RenderObject&, GraphicsContext*, const LayoutRect&, BackgroundBleedAvoidance, InlineFlowBox*, const LayoutSize&, bool includeLogicalLeftEdge, bool includeLogicalRightEdge);
+    static RoundedRect getBackgroundRoundedRect(RenderObject&, const LayoutRect&, InlineFlowBox*, LayoutUnit inlineBoxWidth, LayoutUnit inlineBoxHeight,
+        bool includeLogicalLeftEdge, bool includeLogicalRightEdge);
+    static bool isDocumentElementWithOpaqueBackground(RenderObject&);
+    static void applyBoxShadowForBackground(GraphicsContext*, RenderObject&);
+    static bool fixedBackgroundPaintsInLocalCoordinates(const RenderObject&);
+    static IntSize calculateFillTileSize(const RenderBoxModelObject&, const FillLayer&, const IntSize& scaledPositioningAreaSize);
 
     // FIXME: this should be const.
     RenderBox& m_renderBox;