EDK: Plumb Handle/HandleVector one more layer down.

mojo/edk/system/message_pipe_endpoint.cc

Index: mojo/edk/system/message_pipe_endpoint.cc
diff --git a/mojo/edk/system/message_pipe_endpoint.cc b/mojo/edk/system/message_pipe_endpoint.cc
index 4b8bc5e0afce17d924d55f0937df44315f790ea0..b2b96311b65ed414977a2d9b857407c1f2507e55 100644
--- a/mojo/edk/system/message_pipe_endpoint.cc
+++ b/mojo/edk/system/message_pipe_endpoint.cc
@@ -15,8 +15,8 @@ void MessagePipeEndpoint::CancelAllAwakables() {
 
 MojoResult MessagePipeEndpoint::ReadMessage(UserPointer<void> /*bytes*/,
                                             UserPointer<uint32_t> /*num_bytes*/,
-                                            DispatcherVector* /*dispatchers*/,
-                                            uint32_t* /*num_dispatchers*/,
+                                            HandleVector* /*handles*/,
+                                            uint32_t* /*num_handles*/,
                                             MojoReadMessageFlags /*flags*/) {
   NOTREACHED();
   return MOJO_RESULT_INTERNAL;