Cleanups to viewport-handling and image invalidation in LayoutSVGImage

Source/core/layout/svg/LayoutSVGImage.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 20 matching lines @@
 namespace blink {
 
 class LayoutImageResource;
 class SVGImageElement;
 
 class LayoutSVGImage final : public LayoutSVGModelObject {
 public:
     explicit LayoutSVGImage(SVGImageElement*);
     virtual ~LayoutSVGImage();
 
-    bool updateImageViewport();
     virtual void setNeedsBoundariesUpdate() override { m_needsBoundariesUpdate = true; }
     virtual void setNeedsTransformUpdate() override { m_needsTransformUpdate = true; }
 
     LayoutImageResource* imageResource() { return m_imageResource.get(); }
 
     virtual const AffineTransform& localToParentTransform() const override { return m_localTransform; }
     RefPtr<const SkPicture>& bufferedForeground() { return m_bufferedForeground; }
 
     virtual FloatRect objectBoundingBox() const override { return m_objectBoundingBox; }
     virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectSVGImage || LayoutSVGModelObject::isOfType(type); }
 
     virtual const char* name() const override { return "LayoutSVGImage"; }
 
 protected:
     virtual void willBeDestroyed() override;
 
 private:
     virtual FloatRect strokeBoundingBox() const override { return m_objectBoundingBox; }
 
     virtual void addFocusRingRects(Vector<LayoutRect>&, const LayoutPoint& additionalOffset) const override;
 
     virtual void imageChanged(WrappedImagePtr, const IntRect* = nullptr) override;
 
     virtual void layout() override;
     virtual void paint(const PaintInfo&, const LayoutPoint&) override;
 
+    void updateBoundingBox();
+    void updateImageContainerSize();
     FloatSize computeImageViewportSize(ImageResource&) const;
 
     virtual bool nodeAtFloatPoint(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;
     OwnPtr<LayoutImageResource> m_imageResource;
 
     RefPtr<const SkPicture> m_bufferedForeground;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutSVGImage, isSVGImage());
 
 } // namespace blink
 
 #endif // LayoutSVGImage_h