Stub for BBRv2, based on TCP congestion feedback frames.

net/quic/congestion_control/receive_algorithm_interface.cc

Index: net/quic/congestion_control/receive_algorithm_interface.cc
diff --git a/net/quic/congestion_control/receive_algorithm_interface.cc b/net/quic/congestion_control/receive_algorithm_interface.cc
index f5672f804156fe3c61fef3b9ba77a1934529e24c..aa49540cbe220acbf920a937a925a848f52f4848 100644
--- a/net/quic/congestion_control/receive_algorithm_interface.cc
+++ b/net/quic/congestion_control/receive_algorithm_interface.cc
@@ -14,6 +14,7 @@ ReceiveAlgorithmInterface* ReceiveAlgorithmInterface::Create(
     CongestionFeedbackType type) {
   switch (type) {
     case kTCP:
+    case kTCPBBR:

[Ryan Hamilton, 2014/05/16 18:12:17]

I think we should DFATAL (or somesuch) if kTCPBBR is used. Same as
kInterArrival...

[ramant (doing other things), 2014/05/16 18:36:24]

Done.

       return new TcpReceiver();
     case kInterArrival:
       LOG(DFATAL) << "InterArrivalSendAlgorithm no longer supported.";