Recompute overflow after transform changes

Source/core/rendering/RenderLayerModelObject.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 Apple Inc. All rights reserved.
  * Copyright (C) 2010, 2012 Google Inc. 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 89 matching lines @@
             // Do a repaint with the old style first, e.g., for example if we go from
             // having an outline to not having an outline.
             if (diff == StyleDifferenceRepaintLayer) {
                 layer()->repainter().repaintIncludingDescendants();
                 if (oldStyle->clip() != newStyle->clip())
                     layer()->clipper().clearClipRectsIncludingDescendants();
             } else if (diff == StyleDifferenceRepaint || newStyle->outlineSize() < oldStyle->outlineSize())
                 repaint();
         }
 
-        if (diff == StyleDifferenceLayout || diff == StyleDifferenceSimplifiedLayout) {
+        if (diff == StyleDifferenceLayout) {
             // When a layout hint happens, we go ahead and do a repaint of the layer, since the layer could
             // end up being destroyed.
             if (hasLayer()) {
                 if (oldStyle->hasClip() != newStyle->hasClip()
                     || oldStyle->clip() != newStyle->clip()) {
                     // Composited layers don't need to be repainted when a parent's clip changes.
                     layer()->repainter().repaintIncludingNonCompositingDescendants(containerForRepaint());
                 } else if (!layer()->hasCompositedLayerMapping()) {
                     if (oldStyle->position() != newStyle->position()
                         || oldStyle->zIndex() != newStyle->zIndex()
@@ skipping 101 matching lines @@
     return m_layer ? m_layer->hasCompositedLayerMapping() : false;
 }
 
 CompositedLayerMapping* RenderLayerModelObject::groupedMapping() const
 {
     return m_layer ? m_layer->groupedMapping() : 0;
 }
 
 } // namespace WebCore