Use ChannelMojo for the utility process.

content/child/child_thread_impl.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 "content/child/child_thread_impl.h"
 
 #include <signal.h>
 #include <string>
 #include <utility>
 
@@ skipping 244 matching lines @@
 
 }  // namespace
 
 ChildThread* ChildThread::Get() {
   return ChildThreadImpl::current();
 }
 
 ChildThreadImpl::Options::Options()
     : channel_name(base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
           switches::kProcessChannelID)),
-      use_mojo_channel(false) {
+      use_mojo_channel(base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kMojoChannelToken)) {
 }
 
 ChildThreadImpl::Options::Options(const Options& other) = default;
 
 ChildThreadImpl::Options::~Options() {
 }
 
 ChildThreadImpl::Options::Builder::Builder() {
 }
 
@@ skipping 464 matching lines @@
 void ChildThreadImpl::EnsureConnected() {
   VLOG(0) << "ChildThreadImpl::EnsureConnected()";
   base::Process::Current().Terminate(0, false);
 }
 
 bool ChildThreadImpl::IsInBrowserProcess() const {
   return static_cast<bool>(browser_process_io_runner_);
 }
 
 }  // namespace content