Use the viewBox when scaling <svg:image>s non-uniformly w/ pAR=none

Source/core/rendering/svg/RenderSVGImage.h

 /*
  * Copyright (C) 2006 Alexander Kellett <lypanov@kde.org>
  * Copyright (C) 2006, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2009 Google, Inc.
  * Copyright (C) 2010 Patrick Gansterer <paroga@paroga.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
@@ skipping 45 matching lines @@
 
     virtual FloatRect strokeBoundingBox() const override { return m_objectBoundingBox; }
 
     virtual void addFocusRingRects(Vector<LayoutRect>&, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer) const override;
 
     virtual void imageChanged(WrappedImagePtr, const IntRect* = 0) override;
 
     virtual void layout() override;
     virtual void paint(PaintInfo&, const LayoutPoint&) override;
 
-    bool forceNonUniformScaling(SVGImageElement*) const;
+    FloatSize computeImageViewportSize(ImageResource&) const;
 
     virtual bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction) override;
 
     virtual AffineTransform localTransform() const override { return m_localTransform; }
 
     bool m_needsBoundariesUpdate : 1;
     bool m_needsTransformUpdate : 1;
     AffineTransform m_localTransform;
     FloatRect m_objectBoundingBox;
     FloatRect m_paintInvalidationBoundingBox;
     OwnPtr<RenderImageResource> m_imageResource;
 
     RefPtr<DisplayList> m_bufferedForeground;
 };
 
 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderSVGImage, isSVGImage());
 
 } // namespace blink
 
 #endif // RenderSVGImage_h