[SVG] Poor filter resolution when using CSS 3D transforms.

Source/core/rendering/svg/SVGRenderingContext.h

 /**
  * Copyright (C) 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Google, Inc.  All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  * Copyright (C) 2012 Zoltan Herczeg <zherczeg@webkit.org>.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 61 matching lines @@
     // Automatically finishes context rendering.
     ~SVGRenderingContext();
 
     // Used by all SVG renderers who apply clip/filter/etc. resources to the renderer content.
     void prepareToRenderSVGContent(RenderObject*, PaintInfo&, NeedsGraphicsContextSave = DontSaveGraphicsContext);
     bool isRenderingPrepared() const { return m_renderingFlags & RenderingPrepared; }
 
     static void renderSubtree(GraphicsContext*, RenderObject*, const AffineTransform&);
 
     static float calculateScreenFontSizeScalingFactor(const RenderObject*);
-    static void calculateTransformationToOutermostCoordinateSystem(const RenderObject*, AffineTransform& absoluteTransform);
+    static void calculateDeviceSpaceTransformation(const RenderObject*, AffineTransform& absoluteTransform);
     static FloatRect clampedAbsoluteTargetRect(const FloatRect& absoluteTargetRect);
     static void clear2DRotation(AffineTransform&);
 
     static IntRect calculateImageBufferRect(const FloatRect& targetRect, const AffineTransform& absoluteTransform)
     {
         return enclosingIntRect(absoluteTransform.mapRect(targetRect));
     }
 
     // Support for the buffered-rendering hint.
     bool bufferForeground(OwnPtr<ImageBuffer>&);
@@ skipping 18 matching lines @@
     IntRect m_savedPaintRect;
     RenderSVGResourceFilter* m_filter;
     RenderSVGResourceClipper* m_clipper;
     ClipperContext m_clipperContext;
     RenderSVGResourceMasker* m_masker;
 };
 
 } // namespace WebCore
 
 #endif // SVGRenderingContext_h