Prevent QUIC subclasses from accessing stream_map_.size().

No behavior change. not protected.

PiperOrigin-RevId: 324674633
Change-Id: Iaac67b21a154be167b1f404a4f4d3b83bff72a38

quic/core/http/quic_spdy_session.cc

diff --git a/quic/core/http/quic_spdy_session.cc b/quic/core/http/quic_spdy_session.cc
index 2948371..e025706 100644
--- a/quic/core/http/quic_spdy_session.cc
+++ b/quic/core/http/quic_spdy_session.cc
@@ -1178,8 +1178,8 @@
 }
 
 bool QuicSpdySession::HasActiveRequestStreams() const {
-  DCHECK_GE(static_cast<size_t>(stream_map().size()), num_static_streams());
-  return stream_map().size() - num_static_streams() > 0;
+  DCHECK_GE(static_cast<size_t>(stream_map_size()), num_static_streams());
+  return stream_map_size() - num_static_streams() > 0;
 }
 
 bool QuicSpdySession::ProcessPendingStream(PendingStream* pending) {

quic/core/quic_session.cc

diff --git a/quic/core/quic_session.cc b/quic/core/quic_session.cc
index 68fde60..5b825ed 100644
--- a/quic/core/quic_session.cc
+++ b/quic/core/quic_session.cc
@@ -1975,6 +1975,8 @@
            stream_id_manager_.num_open_outgoing_streams() -
            locally_closed_streams_highest_offset_.size();
   }
+  DCHECK_GE(static_cast<QuicStreamCount>(stream_map_.size()),
+            num_static_streams_ + num_draining_streams_);
   return stream_map_.size() - num_draining_streams_ - num_static_streams_;
 }
 

quic/core/quic_session.h

diff --git a/quic/core/quic_session.h b/quic/core/quic_session.h
index 9566ea1..a49726e 100644
--- a/quic/core/quic_session.h
+++ b/quic/core/quic_session.h
@@ -563,7 +563,9 @@
   }
 
   StreamMap& stream_map() { return stream_map_; }
-  const StreamMap& stream_map() const { return stream_map_; }
+
+  // TODO(b/136274541): remove this getter and only expose GetNumActiveStreams()
+  QuicStreamCount stream_map_size() const { return stream_map_.size(); }
 
   const PendingStreamMap& pending_streams() const {
     return pending_stream_map_;

quic/qbone/qbone_client_session.cc

diff --git a/quic/qbone/qbone_client_session.cc b/quic/qbone/qbone_client_session.cc
index 98d8a51..2e5d205 100644
--- a/quic/qbone/qbone_client_session.cc
+++ b/quic/qbone/qbone_client_session.cc
@@ -94,7 +94,7 @@
     const ProofVerifyDetails& verify_details) {}
 
 bool QboneClientSession::HasActiveRequests() const {
-  return (stream_map().size() - num_static_streams()) > 0;
+  return (stream_map_size() - num_static_streams()) > 0;
 }
 
 }  // namespace quic