Introduce Layout*::adjustVisualRectForRasterEffects and use it for SVG hairlines.

third_party/WebKit/Source/core/layout/svg/LayoutSVGShape.h

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
  * Copyright (C) 2005 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2006 Apple Computer, Inc
  * Copyright (C) 2009 Google, Inc.
  * Copyright (C) 2011 Renata Hodovan <reni@webkit.org>
  * Copyright (C) 2011 University of Szeged
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 88 matching lines @@
 
   virtual ShapeGeometryCodePath geometryCodePath() const {
     return PathGeometry;
   }
 
   FloatRect objectBoundingBox() const final { return m_fillBoundingBox; }
 
   const char* name() const override { return "LayoutSVGShape"; }
 
  protected:
+  void adjustVisualRectForRasterEffects(LayoutRect&) const override;
+
   void clearPath() { m_path.reset(); }
   void createPath();
 
   virtual void updateShapeFromElement();
   // Calculates an inclusive bounding box of this shape as if this shape has
   // a stroke. If this shape has a stroke, then m_strokeBoundingBox is returned;
   // otherwise, estimates a bounding box (not necessarily tight) that would
   // include this shape's stroke bounding box if it had a stroke.
   virtual FloatRect hitTestStrokeBoundingBox() const;
   virtual bool shapeDependentStrokeContains(const FloatPoint&);
@@ skipping 45 matching lines @@
   bool m_needsBoundariesUpdate : 1;
   bool m_needsShapeUpdate : 1;
   bool m_needsTransformUpdate : 1;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutSVGShape, isSVGShape());
 
 }  // namespace blink
 
 #endif