--- base/base_switches.h.orig	2022-02-28 16:54:41 UTC
+++ base/base_switches.h
@@ -60,7 +60,7 @@ extern const char kEnableIdleTracing[];
 extern const char kForceFieldTrialParams[];
 #endif
 
-#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
+#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_BSD)
 extern const char kEnableThreadInstructionCount[];
 
 // TODO(crbug.com/1176772): Remove kEnableCrashpad and IsCrashpadEnabled() when