Mojo: Give ChannelEndpoint the remote ID and ProxyMessagePipeEndpoint the ChannelEndpoint.

mojo/system/message_pipe_endpoint.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "mojo/system/message_pipe_endpoint.h"
 
 #include "base/logging.h"
-#include "mojo/system/channel.h"
 
 namespace mojo {
 namespace system {
 
 void MessagePipeEndpoint::Close() {
   NOTREACHED();
 }
 
 void MessagePipeEndpoint::CancelAllWaiters() {
   NOTREACHED();
@@ skipping 23 matching lines @@
   return MOJO_RESULT_INTERNAL;
 }
 
 void MessagePipeEndpoint::RemoveWaiter(Waiter* /*waiter*/,
                                        HandleSignalsState* signals_state) {
   NOTREACHED();
   if (signals_state)
     *signals_state = HandleSignalsState();
 }
 
-void MessagePipeEndpoint::Attach(scoped_refptr<Channel> /*channel*/,
+void MessagePipeEndpoint::Attach(ChannelEndpoint* /*channel_endpoint*/,
+                                 Channel* /*channel*/,
                                  MessageInTransit::EndpointId /*local_id*/) {
   NOTREACHED();
 }
 
 bool MessagePipeEndpoint::Run(MessageInTransit::EndpointId /*remote_id*/) {
   NOTREACHED();
   return true;
 }
 
 void MessagePipeEndpoint::OnRemove() {
   NOTREACHED();
 }
 
 }  // namespace system
 }  // namespace mojo