Reland "Let SVGForeignObject's local SVG coordinates mean what it should"

third_party/WebKit/Source/core/layout/svg/LayoutSVGForeignObject.cpp

 /*
  * Copyright (C) 2006 Apple Computer, Inc.
  * Copyright (C) 2009 Google, Inc.
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 28 matching lines @@
   // Disallow arbitary SVG content. Only allow proper <svg xmlns="svgNS">
   // subdocuments.
   return !child->isSVGChild();
 }
 
 void LayoutSVGForeignObject::paint(const PaintInfo& paintInfo,
                                    const LayoutPoint&) const {
   SVGForeignObjectPainter(*this).paint(paintInfo);
 }
 
-AffineTransform LayoutSVGForeignObject::localToSVGParentTransform() const {
-  // Unlike other viewport-defining SVG objects, here localSVGTransform applies
-  // to the viewport offset.
-  return localSVGTransform() *
-         AffineTransform::translation(location().x(), location().y());
-}
-
 LayoutUnit LayoutSVGForeignObject::elementX() const {
   return LayoutUnit(
       roundf(SVGLengthContext(toSVGElement(node()))
                  .valueForLength(styleRef().svgStyle().x(), styleRef(),
                                  SVGLengthMode::Width)));
 }
 
 LayoutUnit LayoutSVGForeignObject::elementY() const {
   return LayoutUnit(
       roundf(SVGLengthContext(toSVGElement(node()))
@@ skipping 87 matching lines @@
   HitTestLocation hitTestLocation(localPoint);
   return LayoutBlock::nodeAtPoint(result, hitTestLocation, LayoutPoint(),
                                   HitTestForeground) ||
          LayoutBlock::nodeAtPoint(result, hitTestLocation, LayoutPoint(),
                                   HitTestFloat) ||
          LayoutBlock::nodeAtPoint(result, hitTestLocation, LayoutPoint(),
                                   HitTestChildBlockBackgrounds);
 }
 
 }  // namespace blink