QUIC - disable QUIC if packet loss rate is bad for a connection.

net/quic/quic_protocol.h

Index: net/quic/quic_protocol.h
diff --git a/net/quic/quic_protocol.h b/net/quic/quic_protocol.h
index e4ea75fc3e4fe7d2d86714ad088312cd995d87c8..042a40ab0995e9a5e4f0de5c00cada1def3ad180 100644
--- a/net/quic/quic_protocol.h
+++ b/net/quic/quic_protocol.h
@@ -520,6 +520,8 @@ enum QuicErrorCode {
   QUIC_TOO_MANY_OUTSTANDING_RECEIVED_PACKETS = 69,
   // The quic connection job to load server config is cancelled.
   QUIC_CONNECTION_CANCELLED = 70,
+  // Disabled QUIC because of high packet loss rate.
+  QUIC_BAD_PACKET_LOSS_RATE = 71,
 
   // Crypto errors.
 
@@ -577,7 +579,7 @@ enum QuicErrorCode {
   QUIC_VERSION_NEGOTIATION_MISMATCH = 55,
 
   // No error. Used as bound while iterating.
-  QUIC_LAST_ERROR = 71,
+  QUIC_LAST_ERROR = 72,
 };
 
 struct NET_EXPORT_PRIVATE QuicPacketPublicHeader {