Fix propagation of clip-path and border-radius clipping to child layers

Source/core/rendering/CompositedLayerMapping.cpp

 /*
  * Copyright (C) 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 446 matching lines @@
 
     updateScrollParent(scrollParent);
     updateClipParent(m_owningLayer->clipParent());
 
     if (layerConfigChanged)
         updateInternalHierarchy();
 
     if (updateMaskLayer(renderer->hasMask()))
         m_graphicsLayer->setMaskLayer(m_maskLayer.get());
 
-    bool needsChildClippingMask = (renderer->style()->hasBorderRadius() || renderer->style()->clipPath()) && isAcceleratedContents(renderer);
+    bool needsChildClippingMask = (renderer->style()->hasBorderRadius() || m_owningLayer->hasComplexClippedAncestor()) && isAcceleratedContents(renderer);
+
     if (updateClippingMaskLayers(needsChildClippingMask))
         m_graphicsLayer->setContentsClippingMaskLayer(m_childClippingMaskLayer.get());
 
     if (m_owningLayer->reflectionInfo()) {
         if (m_owningLayer->reflectionInfo()->reflectionLayer()->hasCompositedLayerMapping()) {
             GraphicsLayer* reflectionLayer = m_owningLayer->reflectionInfo()->reflectionLayer()->compositedLayerMapping()->mainGraphicsLayer();
             m_graphicsLayer->setReplicatedByLayer(reflectionLayer);
         }
     } else {
         m_graphicsLayer->setReplicatedByLayer(0);
@@ skipping 1528 matching lines @@
     } else if (graphicsLayer == m_scrollingContentsLayer.get()) {
         name = "Scrolling Contents Layer";
     } else {
         ASSERT_NOT_REACHED();
     }
 
     return name;
 }
 
 } // namespace WebCore