$OpenBSD: patch-content_child_child_process_cc,v 1.2 2017/03/14 12:18:54 robert Exp $
--- content/child/child_process.cc.orig.port	Thu Mar  9 21:04:32 2017
+++ content/child/child_process.cc	Fri Mar 10 07:46:23 2017
@@ -122,7 +122,7 @@ void ChildProcess::ReleaseProcess() {
     main_thread_->OnProcessFinalRelease();
 }
 
-#if defined(OS_LINUX)
+#if defined(OS_LINUX) || defined(OS_BSD)
 void ChildProcess::SetIOThreadPriority(
     base::ThreadPriority io_thread_priority) {
   main_thread_->SetThreadPriority(io_thread_.GetThreadId(), io_thread_priority);
