updateRequiresOwnBackingStoreForAncestorReasons 3485 Source/core/rendering/RenderLayer.cpp             node->layer()->compositedLayerMapping()->updateRequiresOwnBackingStoreForAncestorReasons(enclosingCompositingLayer);
updateRequiresOwnBackingStoreForAncestorReasons  866 Source/core/rendering/compositing/CompositedLayerMapping.cpp     updateRequiresOwnBackingStoreForAncestorReasons(compAncestor);
updateRequiresOwnBackingStoreForAncestorReasons  139 Source/core/rendering/compositing/CompositedLayerMapping.h     bool updateRequiresOwnBackingStoreForAncestorReasons(const RenderLayer* compositingAncestor);