Merge GetOrCreateDynamicStream() into GetOrCreateStream().

GetOrCreateDynamicStream() no longer guarantees that the returned stream is non-static. And since we have a single stream map for all streams, we can just have one method.

gfe-relnote: Protected by quic_inline_getorcreatedynamicstream.
PiperOrigin-RevId: 258426677
Change-Id: I89ac704a44da79afce3c1704efd5d721c9585f32
diff --git a/quic/test_tools/quic_session_peer.cc b/quic/test_tools/quic_session_peer.cc
index 0dfba43..e78b059 100644
--- a/quic/test_tools/quic_session_peer.cc
+++ b/quic/test_tools/quic_session_peer.cc
@@ -118,9 +118,9 @@
 }
 
 // static
-QuicStream* QuicSessionPeer::GetOrCreateDynamicStream(QuicSession* session,
-                                                      QuicStreamId stream_id) {
-  return session->GetOrCreateDynamicStream(stream_id);
+QuicStream* QuicSessionPeer::GetOrCreateStream(QuicSession* session,
+                                               QuicStreamId stream_id) {
+  return session->GetOrCreateStream(stream_id);
 }
 
 // static