Renumber QUIC streams when there is no crypto stream

This also modifies spdy::PriorityWriteScheduler to allow using a different
value than kHttp2RootStreamId as the root stream ID.

gfe-relnote: Renumber QUIC streams, protected by QUIC_VERSION_99
PiperOrigin-RevId: 248609263
Change-Id: I5e83b5950253068996df830694ac55e424d7aa54
diff --git a/quic/core/quic_session.cc b/quic/core/quic_session.cc
index 96f98ad..abc6331 100644
--- a/quic/core/quic_session.cc
+++ b/quic/core/quic_session.cc
@@ -51,7 +51,7 @@
                          const ParsedQuicVersionVector& supported_versions)
     : connection_(connection),
       visitor_(owner),
-      write_blocked_streams_(),
+      write_blocked_streams_(connection->transport_version()),
       config_(config),
       stream_id_manager_(this,
                          kDefaultMaxStreamsPerConnection,