$OpenBSD: patch-chrome_browser_ui_panels_panel_manager_cc,v 1.5 2015/12/05 16:13:32 robert Exp $
--- chrome/browser/ui/panels/panel_manager.cc.orig.port	Fri Nov 13 12:04:15 2015
+++ chrome/browser/ui/panels/panel_manager.cc	Wed Dec  2 08:18:32 2015
@@ -136,7 +136,7 @@ bool PanelManager::ShouldUsePanels(const std::string& 
 // static
 bool PanelManager::IsPanelStackingEnabled() {
   // Stacked panel mode is not supported in linux-aura.
-#if defined(OS_LINUX)
+#if defined(OS_LINUX) || defined(OS_BSD)
   return false;
 #else
   return true;
