gfe-relnote: Pass receive_timestamp to OnMessageAcked().

When receive timestamps are turned on and message frames are enabled, this will
make receive timestamps available to the session whenever a message is acked.

This will be used for RTP over QUIC, where ack timestamps are required for RTP's
congestion controller and media adaptation.  (The current implementation uses
QUIC like a tunnel and disables its congestion control.)

Not flag-protected: no change in behavior, just a change in what is visible
where.

PiperOrigin-RevId: 250703980
Change-Id: I01bcee29d5dfb808771c54e4fd14ebbfa8750375

quic/test_tools/simple_session_notifier.cc

diff --git a/quic/test_tools/simple_session_notifier.cc b/quic/test_tools/simple_session_notifier.cc
index e72e0e1..c6e3801 100644
--- a/quic/test_tools/simple_session_notifier.cc
+++ b/quic/test_tools/simple_session_notifier.cc
@@ -135,7 +135,8 @@
     QuicStreamFrame stream_frame(
         QuicUtils::GetCryptoStreamId(connection_->transport_version()), false,
         interval.min(), interval.max() - interval.min());
-    OnFrameAcked(QuicFrame(stream_frame), QuicTime::Delta::Zero());
+    OnFrameAcked(QuicFrame(stream_frame), QuicTime::Delta::Zero(),
+                 QuicTime::Zero());
   }
 }
 
@@ -202,7 +203,8 @@
 }
 
 bool SimpleSessionNotifier::OnFrameAcked(const QuicFrame& frame,
-                                         QuicTime::Delta /*ack_delay_time*/) {
+                                         QuicTime::Delta /*ack_delay_time*/,
+                                         QuicTime /*receive_timestamp*/) {
   QUIC_DVLOG(1) << "Acking " << frame;
   if (frame.type == CRYPTO_FRAME) {
     StreamState* state = &crypto_state_[frame.crypto_frame->level];