Fix QUIC crash on ConnectionClose, protected behind renamed flag

net/quic/quic_session.cc

Index: net/quic/quic_session.cc
diff --git a/net/quic/quic_session.cc b/net/quic/quic_session.cc
index 7fd5ae9c73217341e85c514be95b31e94174d03d..0f5be9c9dffd3b3f625dc6ee06dd45acbf6b70e7 100644
--- a/net/quic/quic_session.cc
+++ b/net/quic/quic_session.cc
@@ -428,12 +428,6 @@ void QuicSession::CloseStreamInner(QuicStreamId stream_id,
       stream->flow_controller()->IsEnabled()) {
     locally_closed_streams_highest_offset_[stream_id] =
         stream->flow_controller()->highest_received_byte_offset();
-    if (FLAGS_close_quic_connection_unfinished_streams &&
-        connection()->connected() &&
-        locally_closed_streams_highest_offset_.size() > max_open_streams_) {
-      // A buggy client may fail to send FIN/RSTs. Don't tolerate this.
-      connection_->SendConnectionClose(QUIC_TOO_MANY_UNFINISHED_STREAMS);
-    }
   }
 
   stream_map_.erase(it);
@@ -760,6 +754,13 @@ bool QuicSession::GetSSLInfo(SSLInfo* ssl_info) const {
 void QuicSession::PostProcessAfterData() {
   STLDeleteElements(&closed_streams_);
   closed_streams_.clear();
+
+  if (FLAGS_close_quic_connection_unfinished_streams_2 &&
+      connection()->connected() &&
+      locally_closed_streams_highest_offset_.size() > max_open_streams_) {
+    // A buggy client may fail to send FIN/RSTs. Don't tolerate this.
+    connection_->SendConnectionClose(QUIC_TOO_MANY_UNFINISHED_STREAMS);
+  }
 }
 
 void QuicSession::OnSuccessfulVersionNegotiation(const QuicVersion& version) {