RemoveEdgeFromList  414 cc/trees/layer_sorter.cc         RemoveEdgeFromList(outgoing_edge, &outgoing_edge->to->incoming);
RemoveEdgeFromList  446 cc/trees/layer_sorter.cc       RemoveEdgeFromList(incoming_edge, &incoming_edge->from->outgoing);
RemoveEdgeFromList  108 cc/trees/layer_sorter.h   void RemoveEdgeFromList(GraphEdge* graph, std::vector<GraphEdge*>* list);