$OpenBSD: patch-chrome_browser_ui_webui_settings_appearance_handler_h,v 1.2 2017/10/28 07:36:00 robert Exp $
--- chrome/browser/ui/webui/settings/appearance_handler.h.orig.port	Sat Feb  4 11:46:22 2017
+++ chrome/browser/ui/webui/settings/appearance_handler.h	Sat Feb  4 12:11:31 2017
@@ -35,7 +35,7 @@ class AppearanceHandler : public SettingsPageUIHandler
   // Changes the UI theme of the browser to the default theme.
   void HandleUseDefaultTheme(const base::ListValue* args);
 
-#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
+#if (defined(OS_BSD) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)
   // Changes the UI theme of the browser to the system (GTK+) theme.
   void HandleUseSystemTheme(const base::ListValue* args);
 #endif
