updateMaskLayer   200 Source/core/rendering/compositing/CompositedLayerMapping.cpp     updateMaskLayer(false);
updateMaskLayer   492 Source/core/rendering/compositing/CompositedLayerMapping.cpp     if (updateMaskLayer(renderer->hasMask()))
updateMaskLayer   218 Source/core/rendering/compositing/CompositedLayerMapping.h     bool updateMaskLayer(bool needsMaskLayer);