[CSS Shapes] Dynamically created element with image valued shape-outside doesn't update

Source/core/rendering/RenderBox.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. 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
@@ skipping 1612 matching lines @@
 {
     if (!parent())
         return;
 
     if ((style()->borderImage().image() && style()->borderImage().image()->data() == image) ||
         (style()->maskBoxImage().image() && style()->maskBoxImage().image()->data() == image)) {
         repaint();
         return;
     }
 
+    ShapeValue* shapeOutsideValue = style()->shapeOutside();
+    if (!frameView()->isInPerformLayout() && isFloating() && shapeOutsideValue && shapeOutsideValue->image() && shapeOutsideValue->image()->data() == image) {
+        ShapeOutsideInfo::ensureInfo(this)->dirtyShapeSize();
+        markShapeOutsideDependentsForLayout();
+    }
+
     bool didFullRepaint = repaintLayerRectsForImage(image, style()->backgroundLayers(), true);
     if (!didFullRepaint)
         repaintLayerRectsForImage(image, style()->maskLayers(), false);
 
-
     if (hasLayer() && layer()->hasCompositedMask() && layersUseImage(image, style()->maskLayers()))
         layer()->contentChanged(MaskImageChanged);
 }
 
 bool RenderBox::repaintLayerRectsForImage(WrappedImagePtr image, const FillLayer* layers, bool drawingBackground)
 {
     LayoutRect rendererRect;
     RenderBox* layerRenderer = 0;
 
     for (const FillLayer* curLayer = layers; curLayer; curLayer = curLayer->next()) {
@@ skipping 3268 matching lines @@
         return 0;
 
     if (!layoutState && !flowThreadContainingBlock())
         return 0;
 
     RenderBlock* containerBlock = containingBlock();
     return containerBlock->offsetFromLogicalTopOfFirstPage() + logicalTop();
 }
 
 } // namespace WebCore