Part of QUIC v39 change: 1) do not ack acks. 2) Send a WINDOW_UPDATE frame every 20 packets which d…

net/quic/core/quic_session.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/core/quic_session.h"
 
 #include <cstdint>
 #include <utility>
 
 #include "net/quic/core/quic_connection.h"
@@ skipping 801 matching lines @@
 bool QuicSession::HasDataToWrite() const {
   return write_blocked_streams_.HasWriteBlockedCryptoOrHeadersStream() ||
          write_blocked_streams_.HasWriteBlockedDataStreams() ||
          connection_->HasQueuedData();
 }
 
 void QuicSession::PostProcessAfterData() {
   closed_streams_.clear();
 }
 
+void QuicSession::OnAckNeedsRetransmittableFrame() {
+  flow_controller_.SendWindowUpdate();
+}
+
 size_t QuicSession::GetNumDynamicOutgoingStreams() const {
   DCHECK_GE(dynamic_stream_map_.size(), num_dynamic_incoming_streams_);
   return dynamic_stream_map_.size() - num_dynamic_incoming_streams_;
 }
 
 size_t QuicSession::GetNumDrainingOutgoingStreams() const {
   DCHECK_GE(draining_streams_.size(), num_draining_incoming_streams_);
   return draining_streams_.size() - num_draining_incoming_streams_;
 }
 
@@ skipping 24 matching lines @@
 
 size_t QuicSession::MaxAvailableStreams() const {
   return max_open_incoming_streams_ * kMaxAvailableStreamsMultiplier;
 }
 
 bool QuicSession::IsIncomingStream(QuicStreamId id) const {
   return id % 2 != next_outgoing_stream_id_ % 2;
 }
 
 }  // namespace net