Deprecate FLAGS_quic_count_unfinished_as_open_streams.

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 2a325d680a087dc95e36401f2292ee96cbbfb93f..0eba20fe96901177675db3c9ff84d4d7f0741430 100644
--- a/net/quic/quic_session.cc
+++ b/net/quic/quic_session.cc
@@ -712,31 +712,18 @@ bool QuicSession::IsClosedStream(QuicStreamId id) {
 }
 
 size_t QuicSession::GetNumOpenStreams() const {
-  if (FLAGS_quic_count_unfinished_as_open_streams) {
-    if (FLAGS_allow_many_available_streams) {
-      return dynamic_stream_map_.size() - draining_streams_.size() +
-             locally_closed_streams_highest_offset_.size();
-    } else {
-      return dynamic_stream_map_.size() + available_streams_.size() -
-             draining_streams_.size() +
-             locally_closed_streams_highest_offset_.size();
-    }
+  if (FLAGS_allow_many_available_streams) {
+    return dynamic_stream_map_.size() - draining_streams_.size() +
+           locally_closed_streams_highest_offset_.size();
   } else {
-    if (FLAGS_allow_many_available_streams) {
-      return dynamic_stream_map_.size() - draining_streams_.size();
-    } else {
-      return dynamic_stream_map_.size() + available_streams_.size() -
-             draining_streams_.size();
-    }
+    return dynamic_stream_map_.size() + available_streams_.size() -
+           draining_streams_.size() +
+           locally_closed_streams_highest_offset_.size();
   }
 }
 
 size_t QuicSession::GetNumActiveStreams() const {
-  if (FLAGS_quic_count_unfinished_as_open_streams) {
-    return GetNumOpenStreams() - locally_closed_streams_highest_offset_.size();
-  } else {
-    return GetNumOpenStreams();
-  }
+  return GetNumOpenStreams() - locally_closed_streams_highest_offset_.size();
 }
 
 size_t QuicSession::GetNumAvailableStreams() const {
@@ -776,12 +763,7 @@ bool QuicSession::HasDataToWrite() const {
 
 void QuicSession::PostProcessAfterData() {
   STLDeleteElements(&closed_streams_);
-
-  // A buggy client may fail to send FIN/RSTs. Don't tolerate this.
-  if (!FLAGS_quic_count_unfinished_as_open_streams &&
-      locally_closed_streams_highest_offset_.size() > max_open_streams_) {
-    CloseConnection(QUIC_TOO_MANY_UNFINISHED_STREAMS);
-  }
+  closed_streams_.clear();
 }
 
 bool QuicSession::IsConnectionFlowControlBlocked() const {