Convert UtilityProcessHost to bootstrap Mojo Channel using the Shell connection

content/utility/utility_thread_impl.cc

Index: content/utility/utility_thread_impl.cc
diff --git a/content/utility/utility_thread_impl.cc b/content/utility/utility_thread_impl.cc
index 8425e664eb580abf37dd23489e9be26aa8ef3eb5..102bdf5041427451b96b751a6e0a045240f88b7e 100644
--- a/content/utility/utility_thread_impl.cc
+++ b/content/utility/utility_thread_impl.cc
@@ -40,7 +40,8 @@ void ConvertVector(const SRC& src, DEST* dest) {
 }  // namespace
 
 UtilityThreadImpl::UtilityThreadImpl()
-    : ChildThreadImpl(ChildThreadImpl::Options::Builder().Build()) {
+    : ChildThreadImpl(ChildThreadImpl::Options::Builder()
+          .UseMojoChannel(true).Build()) {
   Init();
 }