--- sandbox/policy/switches.cc.orig	2025-05-07 06:48:23 UTC
+++ sandbox/policy/switches.cc
@@ -37,7 +37,9 @@ const char kGpuSandboxFailuresFatal[] = "gpu-sandbox-f
 // Meant to be used as a browser-level switch for testing purposes only.
 const char kNoSandbox[] = "no-sandbox";
 
-#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
+const char kDisableUnveil[] = "disable-unveil";
+
+#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_BSD)
 // Instructs the zygote to launch without a sandbox. Processes forked from this
 // type of zygote will apply their own custom sandboxes later.
 const char kNoZygoteSandbox[] = "no-zygote-sandbox";