relnote: Moving many QUIC DFATALS over to QUIC_BUG

net/quic/quic_sent_packet_manager.cc

Index: net/quic/quic_sent_packet_manager.cc
diff --git a/net/quic/quic_sent_packet_manager.cc b/net/quic/quic_sent_packet_manager.cc
index 095e206910ca77f82cde50291e047e80782fb1da..6b71c70f4db3ab1a0579c1aa2562b7671a356c31 100644
--- a/net/quic/quic_sent_packet_manager.cc
+++ b/net/quic/quic_sent_packet_manager.cc
@@ -11,6 +11,7 @@
 #include "net/quic/congestion_control/pacing_sender.h"
 #include "net/quic/crypto/crypto_protocol.h"
 #include "net/quic/proto/cached_network_parameters.pb.h"
+#include "net/quic/quic_bug_tracker.h"
 #include "net/quic/quic_connection_stats.h"
 #include "net/quic/quic_flags.h"
 #include "net/quic/quic_utils_chromium.h"
@@ -422,9 +423,9 @@ void QuicSentPacketManager::RecordSpuriousRetransmissions(
     // ianswett: Prevents crash in b/20552846.
     if (*it < unacked_packets_.GetLeastUnacked() ||
         *it > unacked_packets_.largest_sent_packet()) {
-      LOG(DFATAL) << "Retransmission out of range:" << *it
-                  << " least unacked:" << unacked_packets_.GetLeastUnacked()
-                  << " largest sent:" << unacked_packets_.largest_sent_packet();
+      QUIC_BUG << "Retransmission out of range:" << *it
+               << " least unacked:" << unacked_packets_.GetLeastUnacked()
+               << " largest sent:" << unacked_packets_.largest_sent_packet();
       return;
     }
     const TransmissionInfo& retransmit_info =
@@ -569,9 +570,9 @@ bool QuicSentPacketManager::OnPacketSent(
 
   if (original_packet_number != 0) {
     if (!pending_retransmissions_.erase(original_packet_number)) {
-      DLOG(DFATAL) << "Expected packet number to be in "
-                   << "pending_retransmissions_.  packet_number: "
-                   << original_packet_number;
+      QUIC_BUG << "Expected packet number to be in "
+               << "pending_retransmissions_.  packet_number: "
+               << original_packet_number;
     }
   }
 
@@ -787,8 +788,8 @@ bool QuicSentPacketManager::MaybeUpdateRTT(const QuicAckFrame& ack_frame,
       unacked_packets_.GetTransmissionInfo(ack_frame.largest_observed);
   // Ensure the packet has a valid sent time.
   if (transmission_info.sent_time == QuicTime::Zero()) {
-    LOG(DFATAL) << "Acked packet has zero sent time, largest_observed:"
-                << ack_frame.largest_observed;
+    QUIC_BUG << "Acked packet has zero sent time, largest_observed:"
+             << ack_frame.largest_observed;
     return false;
   }