Use ChannelMojo between the remoting network and desktop processes.

remoting/host/daemon_process.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 "remoting/host/daemon_process.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
-#include "ipc/attachment_broker_privileged.h"
 #include "remoting/base/auto_thread_task_runner.h"
 #include "remoting/host/branding.h"
 #include "remoting/host/chromoting_messages.h"
 #include "remoting/host/config_file_watcher.h"
 #include "remoting/host/desktop_session.h"
 #include "remoting/host/host_event_logger.h"
 #include "remoting/host/host_exit_codes.h"
 #include "remoting/host/host_status_observer.h"
 #include "remoting/host/screen_resolution.h"
 #include "remoting/protocol/transport.h"
@@ skipping 147 matching lines @@
 DaemonProcess::DaemonProcess(
     scoped_refptr<AutoThreadTaskRunner> caller_task_runner,
     scoped_refptr<AutoThreadTaskRunner> io_task_runner,
     const base::Closure& stopped_callback)
     : caller_task_runner_(caller_task_runner),
       io_task_runner_(io_task_runner),
       next_terminal_id_(0),
       stopped_callback_(stopped_callback),
       weak_factory_(this) {
   DCHECK(caller_task_runner->BelongsToCurrentThread());
-
-  // TODO(sergeyu): On OSX AttachmentBroker depends on base::PortProvider
-  // implementation. Add it here when this code is used on OSX.
-#if !defined(OS_MACOSX)
-  IPC::AttachmentBrokerPrivileged::CreateBrokerIfNeeded();
-#endif  // !defined(OS_MACOSX)
+  // TODO(sergeyu): On OSX, mojo::edk::SetMachPortProvider() should be called

[joedow, 2016/10/31 16:41:03]

Since you are updating the contents of the TODO, it might be more appropriate to
replace sergeyu with sammc.  

[Sam McNally, 2016/10/31 22:34:27]

Done.

+  // with a base::PortProvider implementation. Add it here when this code is
+  // used on OSX.
 }
 
 void DaemonProcess::CreateDesktopSession(int terminal_id,
                                          const ScreenResolution& resolution,
                                          bool virtual_terminal) {
   DCHECK(caller_task_runner()->BelongsToCurrentThread());
 
   // Validate the supplied terminal ID. An attempt to create a desktop session
   // with an ID that could possibly have been allocated already is considered
   // a protocol error and the network process will be restarted.
@@ skipping 161 matching lines @@
 }
 
 void DaemonProcess::DeleteAllDesktopSessions() {
   while (!desktop_sessions_.empty()) {
     delete desktop_sessions_.front();
     desktop_sessions_.pop_front();
   }
 }
 
 }  // namespace remoting