Remove FEC related connection options and update FEC related comment in code base.

net/tools/quic/quic_server_session_base.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.
 //
 // A server specific QuicSession subclass.
 
 #ifndef NET_TOOLS_QUIC_QUIC_SERVER_SESSION_BASE_H_
 #define NET_TOOLS_QUIC_QUIC_SERVER_SESSION_BASE_H_
 
 #include <stdint.h>
@@ skipping 61 matching lines @@
   void OnCongestionWindowChange(QuicTime now) override;
 
   ~QuicServerSessionBase() override;
 
   void Initialize() override;
 
   const QuicCryptoServerStreamBase* crypto_stream() const {
     return crypto_stream_.get();
   }
 
-  // Override base class to process FEC config received from client.
+  // Override base class to process bandwidth related config received from
+  // client.
   void OnConfigNegotiated() override;
 
   void set_serving_region(const std::string& serving_region) {
     serving_region_ = serving_region;
   }
 
  protected:
   // QuicSession methods(override them with return type of QuicSpdyStream*):
   QuicCryptoServerStreamBase* GetCryptoStream() override;
 
@@ skipping 42 matching lines @@
 
   // Number of packets sent to the peer, at the time we last sent a SCUP.
   int64_t last_scup_packet_number_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicServerSessionBase);
 };
 
 }  // namespace net
 
 #endif  // NET_TOOLS_QUIC_QUIC_SERVER_SESSION_BASE_H_