Internal change

PiperOrigin-RevId: 463834657
diff --git a/build/source_list.bzl b/build/source_list.bzl
index e54a569..3a02ad0 100644
--- a/build/source_list.bzl
+++ b/build/source_list.bzl
@@ -50,6 +50,7 @@
     "common/quiche_endian.h",
     "common/quiche_linked_hash_map.h",
     "common/quiche_mem_slice_storage.h",
+    "common/quiche_protocol_flags_list.h",
     "common/quiche_text_utils.h",
     "common/simple_buffer_allocator.h",
     "common/structured_headers.h",