Move the m_didTransformToRootUpdate flag to LayoutSVGContainer

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

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Google, Inc.
  *
  * 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 14 matching lines @@
 #include "core/layout/svg/SVGLayoutSupport.h"
 #include "core/paint/SVGContainerPainter.h"
 #include "core/svg/SVGSVGElement.h"
 #include "core/svg/SVGUseElement.h"
 #include "platform/graphics/GraphicsContext.h"
 
 namespace blink {
 
 LayoutSVGViewportContainer::LayoutSVGViewportContainer(SVGElement* node)
     : LayoutSVGContainer(node)
-    , m_didTransformToRootUpdate(false)
     , m_isLayoutSizeChanged(false)
     , m_needsTransformUpdate(true)
 {
 }
 
 void LayoutSVGViewportContainer::determineIfLayoutSizeChanged()
 {
     ASSERT(element());
     if (!isSVGSVGElement(*element()))
         return;
@@ skipping 14 matching lines @@
     m_viewport = FloatRect(svg->x()->currentValue()->value(lengthContext), svg->y()->currentValue()->value(lengthContext), svg->width()->currentValue()->value(lengthContext), svg->height()->currentValue()->value(lengthContext));
 
     if (oldViewport != m_viewport) {
         setNeedsBoundariesUpdate();
         setNeedsTransformUpdate();
     }
 }
 
 bool LayoutSVGViewportContainer::calculateLocalTransform()
 {
-    m_didTransformToRootUpdate = m_needsTransformUpdate || SVGLayoutSupport::transformToRootChanged(parent());
     if (!m_needsTransformUpdate)
         return false;
 
     m_localToParentTransform = AffineTransform::translation(m_viewport.x(), m_viewport.y()) * viewportTransform();
     m_needsTransformUpdate = false;
     return true;
 }
 
 AffineTransform LayoutSVGViewportContainer::viewportTransform() const
 {
@@ skipping 14 matching lines @@
 
     return m_viewport.contains(pointInParent);
 }
 
 void LayoutSVGViewportContainer::paint(const PaintInfo& paintInfo, const LayoutPoint& paintOffset) const
 {
     SVGContainerPainter(*this).paint(paintInfo);
 }
 
 } // namespace blink