Land Recent QUIC changes.

net/quic/congestion_control/quic_congestion_manager.cc

Index: net/quic/congestion_control/quic_congestion_manager.cc
diff --git a/net/quic/congestion_control/quic_congestion_manager.cc b/net/quic/congestion_control/quic_congestion_manager.cc
index d40293c0b12b4f3c04eefa9493c7037081709fcd..a6bd0a8f3c2d1436aed24b6986845eca23c77c92 100644
--- a/net/quic/congestion_control/quic_congestion_manager.cc
+++ b/net/quic/congestion_control/quic_congestion_manager.cc
@@ -62,6 +62,7 @@ void QuicCongestionManager::AbandoningPacket(
     QuicPacketSequenceNumber sequence_number) {
   PendingPacketsMap::iterator it = pending_packets_.find(sequence_number);
   if (it != pending_packets_.end()) {
+    // Shouldn't this report loss as well? (decrease cgst window).
     send_algorithm_->AbandoningPacket(sequence_number, it->second);
     pending_packets_.erase(it);
   }