Use token-based initialisation for the utility process MojoApplication.

content/child/child_thread_impl.h

Index: content/child/child_thread_impl.h
diff --git a/content/child/child_thread_impl.h b/content/child/child_thread_impl.h
index fec7da769063e861bb8228b747c0ceb3b7be5774..b67d3d6089280001698a57d059778fe3e407af57 100644
--- a/content/child/child_thread_impl.h
+++ b/content/child/child_thread_impl.h
@@ -306,6 +306,7 @@ struct ChildThreadImpl::Options {
   scoped_refptr<base::SequencedTaskRunner> browser_process_io_runner;
   std::vector<IPC::MessageFilter*> startup_filters;
   mojo::MessagePipeHandle in_process_message_pipe_handle;
+  mojo::MessagePipeHandle in_process_application_message_pipe_handle;
 
  private:
   Options();