$OpenBSD: patch-chrome_browser_ui_tab_helpers_cc,v 1.4 2017/03/14 12:18:53 robert Exp $
--- chrome/browser/ui/tab_helpers.cc.orig.port	Thu Mar  9 21:04:29 2017
+++ chrome/browser/ui/tab_helpers.cc	Fri Mar 10 07:46:20 2017
@@ -241,7 +241,7 @@ void TabHelpers::AttachTabHelpers(WebContents* web_con
 #endif
 
 #if defined(OS_WIN) || defined(OS_MACOSX) || \
-    (defined(OS_LINUX) && !defined(OS_CHROMEOS))
+    (defined(OS_LINUX) && !defined(OS_CHROMEOS)) || defined(OS_BSD)
   metrics::DesktopSessionDurationObserver::CreateForWebContents(web_contents);
 #endif
 // --- Feature tab helpers behind flags ---
