class WaiterList;
// |DataPipe| is a base class for secondary objects implementing data pipes,
-// similar to |MessagePipe| (see the explanatory comment in core_impl.cc). It is
+// similar to |MessagePipe| (see the explanatory comment in core.cc). It is
// typically owned by the dispatcher(s) corresponding to the local endpoints.
// Its subclasses implement the three cases: local producer and consumer, local
// producer and remote consumer, and remote producer and local consumer. This