Remove QuicPacketCreator::fec_group_number_; replace it with QuicFecGroupInterface::FecGroupNumber(…

net/quic/quic_fec_group_interface.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // Tracks information about an FEC group, including the packets
 // that have been seen, and the running parity.  Provides the ability
 // to revive a dropped packet.
 
 #ifndef NET_QUIC_QUIC_FEC_GROUP_INTERFACE_H_
 #define NET_QUIC_QUIC_FEC_GROUP_INTERFACE_H_
@@ skipping 45 matching lines @@
 
   // The FEC data in the FEC packet.
   virtual const base::StringPiece PayloadParity() const = 0;
 
   // Number of packets in the group.
   virtual QuicPacketCount NumReceivedPackets() const = 0;
 
   // Returns the effective encryption level of the FEC group.
   virtual EncryptionLevel EffectiveEncryptionLevel() const = 0;
 
+  // Return the FEC group number of this group.
+  virtual QuicFecGroupNumber FecGroupNumber() const = 0;
+
   // An optimized version of running |output| ^= |input|, where ^ is
   // byte-by-byte XOR and both |output| and |input| are of size |size_in_bytes|.
   static void XorBuffers(const char* input, size_t size_in_bytes, char* output);
 
  protected:
   QuicFecGroupInterface() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(QuicFecGroupInterface);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_FEC_GROUP_INTERFACE_H_