Convert UtilityProcessHost to bootstrap Mojo Channel using the Shell connection

content/utility/utility_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/utility/utility_thread_impl.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 22 matching lines @@
 template<typename SRC, typename DEST>
 void ConvertVector(const SRC& src, DEST* dest) {
   dest->reserve(src.size());
   for (typename SRC::const_iterator i = src.begin(); i != src.end(); ++i)
     dest->push_back(typename DEST::value_type(*i));
 }
 
 }  // namespace
 
 UtilityThreadImpl::UtilityThreadImpl()
-    : ChildThreadImpl(ChildThreadImpl::Options::Builder().Build()) {
+    : ChildThreadImpl(ChildThreadImpl::Options::Builder()
+          .UseMojoChannel(true).Build()) {
   Init();
 }
 
 UtilityThreadImpl::UtilityThreadImpl(const InProcessChildThreadParams& params)
     : ChildThreadImpl(ChildThreadImpl::Options::Builder()
                           .InBrowserProcess(params)
                           .UseMojoChannel(true)
                           .Build()) {
   Init();
 }
@@ skipping 72 matching lines @@
 }
 
 void UtilityThreadImpl::BindProcessControlRequest(
     mojo::InterfaceRequest<mojom::ProcessControl> request) {
   DCHECK(process_control_);
   process_control_bindings_.AddBinding(process_control_.get(),
                                        std::move(request));
 }
 
 }  // namespace content