NOT FOR LANDING Experiment with allocating SVGImageForContainer on demand

Source/core/layout/LayoutListMarker.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Andrew Wellington (proton@wiretapped.net)
  * Copyright (C) 2010 Daniel Bates (dbates@intudata.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 1081 matching lines @@
 
 void LayoutListMarker::updateContent()
 {
     // FIXME: This if-statement is just a performance optimization, but it's messy to use the preferredLogicalWidths dirty bit for this.
     // It's unclear if this is a premature optimization.
     if (!preferredLogicalWidthsDirty())
         return;
 
     m_text = "";
 
-    if (isImage()) {
-        // FIXME: This is a somewhat arbitrary width.  Generated images for markers really won't become particularly useful
-        // until we support the CSS3 marker pseudoclass to allow control over the width and height of the marker box.
-        int bulletWidth = style()->fontMetrics().ascent() / 2;
-        IntSize defaultBulletSize(bulletWidth, bulletWidth);
-        IntSize imageSize = calculateImageIntrinsicDimensions(m_image.get(), defaultBulletSize, DoNotScaleByEffectiveZoom);
-        m_image->setContainerSizeForLayoutObject(this, imageSize, style()->effectiveZoom());
+    if (isImage())
         return;
-    }
 
     EListStyleType type = style()->listStyleType();
     switch (type) {
     case NoneListStyle:
         break;
     case Circle:
     case Disc:
     case Square:
         m_text = listMarkerText(type, 0); // value is ignored for these types
         break;
@@ skipping 360 matching lines @@
     if (style()) {
         // Reuse the current margins. Otherwise resetting the margins to initial values
         // would trigger unnecessary layout.
         newStyle->setMarginStart(style()->marginStart());
         newStyle->setMarginEnd(style()->marginRight());
     }
     setStyle(newStyle.release());
 }
 
 } // namespace blink