Remove FEC code from receive path.

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 36c5a270fcb88c4dd5e63c6aa48dc0db52d82a40..650c970f31c0cb6725aedae5d615508a903fd983 100644
--- a/net/quic/quic_protocol.h
+++ b/net/quic/quic_protocol.h
@@ -409,22 +409,14 @@ NET_EXPORT_PRIVATE QuicTag MakeQuicTag(char a, char b, char c, char d);
 NET_EXPORT_PRIVATE bool ContainsQuicTag(const QuicTagVector& tag_vector,
                                         QuicTag tag);
 
-// Size in bytes of the data or fec packet header.
+// Size in bytes of the data packet header.
 NET_EXPORT_PRIVATE size_t GetPacketHeaderSize(const QuicPacketHeader& header);
 
 NET_EXPORT_PRIVATE size_t
 GetPacketHeaderSize(QuicConnectionIdLength connection_id_length,
                     bool include_version,
                     bool include_path_id,
-                    QuicPacketNumberLength packet_number_length,
-                    InFecGroup is_in_fec_group);
-
-// Index of the first byte in a QUIC packet of FEC protected data.
-NET_EXPORT_PRIVATE size_t
-GetStartOfFecProtectedData(QuicConnectionIdLength connection_id_length,
-                           bool include_version,
-                           bool include_path_id,
-                           QuicPacketNumberLength packet_number_length);
+                    QuicPacketNumberLength packet_number_length);
 
 // Index of the first byte in a QUIC packet of encrypted data.
 NET_EXPORT_PRIVATE size_t
@@ -686,7 +678,7 @@ struct NET_EXPORT_PRIVATE QuicPacketPublicHeader {
 // An integer which cannot be a packet number.
 const QuicPacketNumber kInvalidPacketNumber = 0;
 
-// Header for Data or FEC packets.
+// Header for Data packets.
 struct NET_EXPORT_PRIVATE QuicPacketHeader {
   QuicPacketHeader();
   explicit QuicPacketHeader(const QuicPacketPublicHeader& header);
@@ -1212,7 +1204,6 @@ class NET_EXPORT_PRIVATE QuicPacket : public QuicData {
              bool includes_path_id,
              QuicPacketNumberLength packet_number_length);
 
-  base::StringPiece FecProtectedData() const;
   base::StringPiece AssociatedData() const;
   base::StringPiece Plaintext() const;