Use QuicSession::transport_version() instead of QuicConnection::transport_version() to make code cleaner.

gfe-relnote: code cleanup, not protected.
PiperOrigin-RevId: 267628510
Change-Id: I2b28c42ec2345870905e7e5d7e88721be86ad6e4
diff --git a/quic/tools/quic_simple_server_stream.cc b/quic/tools/quic_simple_server_stream.cc
index 26ea62a..5badfe1 100644
--- a/quic/tools/quic_simple_server_stream.cc
+++ b/quic/tools/quic_simple_server_stream.cc
@@ -107,8 +107,8 @@
 
 void QuicSimpleServerStream::PushResponse(
     SpdyHeaderBlock push_request_headers) {
-  if (QuicUtils::IsClientInitiatedStreamId(
-          session()->connection()->transport_version(), id())) {
+  if (QuicUtils::IsClientInitiatedStreamId(session()->transport_version(),
+                                           id())) {
     QUIC_BUG << "Client initiated stream shouldn't be used as promised stream.";
     return;
   }
@@ -220,8 +220,8 @@
     return;
   }
 
-  if (QuicUtils::IsServerInitiatedStreamId(
-          session()->connection()->transport_version(), id())) {
+  if (QuicUtils::IsServerInitiatedStreamId(session()->transport_version(),
+                                           id())) {
     // A server initiated stream is only used for a server push response,
     // and only 200 and 30X response codes are supported for server push.
     // This behavior mirrors the HTTP/2 implementation.