$NetBSD$

* Part of patchset to build electron on NetBSD
* Based on OpenBSD's chromium patches, and
  FreeBSD's electron patches

--- third_party/perfetto/src/base/test/vm_test_utils.cc.orig	2025-02-24 19:59:26.000000000 +0000
+++ third_party/perfetto/src/base/test/vm_test_utils.cc
@@ -91,7 +91,7 @@ bool IsMapped(void* start, size_t size) 
   // Fuchsia doesn't yet support paging (b/119503290).
   ignore_result(page_size);
   return true;
-#elif PERFETTO_BUILDFLAG(PERFETTO_OS_NACL)
+#elif PERFETTO_BUILDFLAG(PERFETTO_OS_NACL) || PERFETTO_BUILDFLAG(PERFETTO_OS_BSD)
   // mincore isn't available on NaCL.
   ignore_result(page_size);
   return true;