Move RenderSVGImage's paint code to SVGImagePainter

Source/core/rendering/svg/RenderSVGImage.h

Index: Source/core/rendering/svg/RenderSVGImage.h
diff --git a/Source/core/rendering/svg/RenderSVGImage.h b/Source/core/rendering/svg/RenderSVGImage.h
index 93e649fe71c45d7099b38c8d216d64d6634e88f0..d54fa22364b29267015c4d626a4181a96f6d1ba1 100644
--- a/Source/core/rendering/svg/RenderSVGImage.h
+++ b/Source/core/rendering/svg/RenderSVGImage.h
@@ -43,18 +43,17 @@ public:
 
     RenderImageResource* imageResource() { return m_imageResource.get(); }
 
-    // Note: Assumes the PaintInfo context has had all local transforms applied.
-    void paintForeground(PaintInfo&);
+    virtual const AffineTransform& localToParentTransform() const OVERRIDE { return m_localTransform; }
+    OwnPtr<ImageBuffer>& bufferedForeground() { return m_bufferedForeground; }

[f(malita), 2014/10/24 20:11:53]

Belated comment: encapsulation-- :(

Do we have a general strategy for passing private renderer info to painters?

Some options

1) make all needed info a (packaged?) param to paint() - this will not fly if we
want paint() to follow a uniform interface (which I believe is desirable)

2) pass all info to the painter constructor

3) befriend painters <-> renderers

I'm thinking #2 is preferable, but honestly I would take any of them over
exposing renderer guts publicly :)

+
+    virtual FloatRect paintInvalidationRectInLocalCoordinates() const OVERRIDE { return m_paintInvalidationBoundingBox; }
+    virtual FloatRect objectBoundingBox() const OVERRIDE { return m_objectBoundingBox; }
 
 private:
     virtual const char* renderName() const OVERRIDE { return "RenderSVGImage"; }
     virtual bool isSVGImage() const OVERRIDE { return true; }
 
-    virtual const AffineTransform& localToParentTransform() const OVERRIDE { return m_localTransform; }
-
-    virtual FloatRect objectBoundingBox() const OVERRIDE { return m_objectBoundingBox; }
     virtual FloatRect strokeBoundingBox() const OVERRIDE { return m_objectBoundingBox; }
-    virtual FloatRect paintInvalidationRectInLocalCoordinates() const OVERRIDE { return m_paintInvalidationBoundingBox; }
 
     virtual void addFocusRingRects(Vector<LayoutRect>&, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer) const OVERRIDE;