workaround for mac kernel bug

ipc/ipc_channel_nacl.cc

 // Copyright (c) 2012 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 "ipc/ipc_channel_nacl.h"
 
 #include <errno.h>
 #include <stddef.h>
 #include <sys/types.h>
 
@@ skipping 326 matching lines @@
                                              header_fds);
   input_fds_.clear();
   return true;
 }
 
 bool Channel::ChannelImpl::DidEmptyInputBuffers() {
   // When the input data buffer is empty, the fds should be too.
   return input_fds_.empty();
 }
 
-void Channel::ChannelImpl::HandleHelloMessage(const Message& msg) {
+void Channel::ChannelImpl::HandleInternalMessage(const Message& msg) {
   // The trusted side IPC::Channel should handle the "hello" handshake; we
   // should not receive the "Hello" message.
   NOTREACHED();
 }
 
 //------------------------------------------------------------------------------
 // Channel's methods simply call through to ChannelImpl.
 
 Channel::Channel(const IPC::ChannelHandle& channel_handle,
                  Mode mode,
@@ skipping 17 matching lines @@
   // This shouldn't actually get used in the untrusted side of the proxy, and we
   // don't have the real pid anyway.
   return -1;
 }
 
 bool Channel::Send(Message* message) {
   return channel_impl_->Send(message);
 }
 
 }  // namespace IPC