Not used in production. Add InRecovery() method to QUIC send algorithm

net/quic/quic_sustained_bandwidth_recorder.h

Index: net/quic/quic_sustained_bandwidth_recorder.h
diff --git a/net/quic/quic_sustained_bandwidth_recorder.h b/net/quic/quic_sustained_bandwidth_recorder.h
index 402640920cb254ae3c15b51a594647aa1453bf33..2f05a6c8a9fa1046818d64eb012cc47f31e8a373 100644
--- a/net/quic/quic_sustained_bandwidth_recorder.h
+++ b/net/quic/quic_sustained_bandwidth_recorder.h
@@ -24,6 +24,7 @@ class NET_EXPORT_PRIVATE QuicSustainedBandwidthRecorder {
   // bandwidth estimate.
   // |time_now| is used as a max bandwidth timestamp if needed.
   void RecordEstimate(bool is_reliable_estimate,
+                      bool in_slow_start,
                       QuicBandwidth bandwidth,
                       QuicTime estimate_time,
                       QuicWallTime wall_time,
@@ -48,6 +49,11 @@ class NET_EXPORT_PRIVATE QuicSustainedBandwidthRecorder {
     return max_bandwidth_timestamp_;
   }
 
+  bool EstimateRecordedDuringSlowStart() const {
+    DCHECK(has_estimate_);
+    return bandwidth_estimate_recorded_during_slow_start_;
+  }
+
  private:
   // True if we have been able to calculate sustained bandwidth, over at least
   // one recording period (3 * rtt).
@@ -56,6 +62,10 @@ class NET_EXPORT_PRIVATE QuicSustainedBandwidthRecorder {
   // True if the last call to RecordEstimate had a reliable estimate.
   bool is_recording_;
 
+  // True if the current sustained bandwidth estimate was generated while in
+  // slow start.
+  bool bandwidth_estimate_recorded_during_slow_start_;
+
   // The latest sustained bandwidth estimate.
   QuicBandwidth bandwidth_estimate_;