--- chrome/browser/ui/libgtkui/BUILD.gn.orig	2017-04-19 19:06:30 UTC
+++ chrome/browser/ui/libgtkui/BUILD.gn
@@ -2,7 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-assert(is_linux, "This file should only be referenced on Linux")
+assert(is_linux || is_bsd, "This file should only be referenced on Linux")
 
 import("//build/config/features.gni")
 import("//build/config/linux/gtk/gtk.gni")