--- chrome/browser/background/background_mode_optimizer.cc.orig	2022-02-28 16:54:41 UTC
+++ chrome/browser/background/background_mode_optimizer.cc
@@ -31,7 +31,7 @@ std::unique_ptr<BackgroundModeOptimizer> BackgroundMod
           switches::kKeepAliveForTest))
     return nullptr;
 
-#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
+#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_BSD)
   if (base::FeatureList::IsEnabled(features::kBackgroundModeAllowRestart))
     return base::WrapUnique(new BackgroundModeOptimizer());
 #endif  // BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)