Compiles with the breakup
diff --git a/src/core/transport/chttp2/internal.h b/src/core/transport/chttp2/internal.h
index 9e8172a..1eed3b9 100644
--- a/src/core/transport/chttp2/internal.h
+++ b/src/core/transport/chttp2/internal.h
@@ -426,6 +426,7 @@
 
   /** incoming metadata */
   grpc_chttp2_incoming_metadata_buffer incoming_metadata;
+  grpc_chttp2_incoming_metadata_live_op_buffer outstanding_metadata;
 } grpc_chttp2_stream_global;
 
 typedef struct {