--- net/base/network_change_notifier.cc.orig	2026-09-25 15:26:43 UTC
+++ net/base/network_change_notifier.cc
@@ -38,7 +38,7 @@
 #include "third_party/abseil-cpp/absl/container/flat_hash_set.h"
 #elif BUILDFLAG(IS_APPLE)
 #include "net/base/network_change_notifier_apple.h"
-#elif BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
+#elif BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_BSD)
 #include "net/base/network_change_notifier_passive.h"
 #elif BUILDFLAG(IS_FUCHSIA)
 #include "net/base/network_change_notifier_fuchsia.h"
@@ -313,6 +313,9 @@ std::unique_ptr<NetworkChangeNotifier> NetworkChangeNo
 #elif BUILDFLAG(IS_FUCHSIA)
   return std::make_unique<NetworkChangeNotifierFuchsia>(
       /*require_wlan=*/false);
+#elif BUILDFLAG(IS_BSD)
+  return std::make_unique<MockNetworkChangeNotifier>(
+      /*dns_config_notifier*/nullptr);
 #else
   NOTIMPLEMENTED();
   return nullptr;