gfe-relnote: only respect TLPR when there is pending non-crypto stream data. Flag protected by quic_ignore_tlpr_if_no_pending_stream_data and session_decides_what_to_write.

When calculating the tail loss probe delay and TLPR option is enabled, only use half tail loss probe when session has pending stream data. Otherwise, ignore TLPR.

PiperOrigin-RevId: 253286073
Change-Id: I9321c9d0608f68bb4ec0f7f4fbba1e470e4a0a3c
diff --git a/quic/test_tools/simple_session_notifier.h b/quic/test_tools/simple_session_notifier.h
index 25c9941..aab3769 100644
--- a/quic/test_tools/simple_session_notifier.h
+++ b/quic/test_tools/simple_session_notifier.h
@@ -73,6 +73,7 @@
                         TransmissionType type) override;
   bool IsFrameOutstanding(const QuicFrame& frame) const override;
   bool HasUnackedCryptoData() const override;
+  bool HasUnackedStreamData() const override;
 
  private:
   struct StreamState {