Cleanups to viewport-handling and image invalidation in LayoutSVGImage

Source/core/svg/SVGImageElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Rob Buis <buis@kde.org>
  * Copyright (C) 2006 Alexander Kellett <lypanov@kde.org>
  *
  * 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 109 matching lines @@
             invalidateSVGPresentationAttributeStyle();
             setNeedsStyleRecalc(LocalStyleChange,
                 StyleChangeReasonForTracing::fromAttribute(attrName));
             updateRelativeLengthsInformation();
         }
 
         LayoutObject* object = this->layoutObject();
         if (!object)
             return;
 
-        // FIXME: if isLengthAttribute then we should avoid this
-        // call if the viewport didn't change, however since we don't
-        // have the computed style yet we can't use updateImageViewport.
+        // FIXME: if isLengthAttribute then we should avoid this call if the
+        // viewport didn't change, however since we don't have the computed
+        // style yet we can't use updateBoundingBox/updateImageContainerSize.
         // See http://crbug.com/466200.
         markForLayoutAndParentResourceInvalidation(object);
         return;
     }
 
     if (SVGURIReference::isKnownAttribute(attrName)) {
         SVGElement::InvalidationGuard invalidationGuard(this);
         if (inDocument())
             imageLoader().updateFromElement(ImageLoader::UpdateIgnorePreviousError);
         else
@@ skipping 60 matching lines @@
     return AtomicString(hrefString());
 }
 
 void SVGImageElement::didMoveToNewDocument(Document& oldDocument)
 {
     imageLoader().elementDidMoveToNewDocument();
     SVGGraphicsElement::didMoveToNewDocument(oldDocument);
 }
 
 } // namespace blink