Disable QUIC v29 and earlier. Protected by FLAGS_quic_disable_pre_30.

net/tools/quic/test_tools/quic_test_server.cc

Index: net/tools/quic/test_tools/quic_test_server.cc
diff --git a/net/tools/quic/test_tools/quic_test_server.cc b/net/tools/quic/test_tools/quic_test_server.cc
index e14464be7594f19bce39d8cc620e23a678009d94..1edf41a448f7e726444fda9d217683040557928d 100644
--- a/net/tools/quic/test_tools/quic_test_server.cc
+++ b/net/tools/quic/test_tools/quic_test_server.cc
@@ -103,7 +103,8 @@ class QuicTestDispatcher : public QuicDispatcher {
     }
     QuicConnection* connection = new QuicConnection(
         id, client, helper(), alarm_factory(), CreatePerConnectionWriter(),
-        /* owns_writer= */ true, Perspective::IS_SERVER, supported_versions());
+        /* owns_writer= */ true, Perspective::IS_SERVER,
+        GetSupportedVersions());
 
     QuicServerSessionBase* session = nullptr;
     if (stream_factory_ != nullptr || crypto_stream_factory_ != nullptr) {