Implement the variable length changes necessary to easily accommodate

net/quic/quic_protocol.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.
 
 #ifndef NET_QUIC_QUIC_PROTOCOL_H_
 #define NET_QUIC_QUIC_PROTOCOL_H_
 
 #include <stddef.h>
 #include <limits>
 #include <map>
@@ skipping 471 matching lines @@
                QuicPacketSequenceNumber least_unacked);
 
   NET_EXPORT_PRIVATE friend std::ostream& operator<<(
       std::ostream& os, const QuicAckFrame& s);
 
   SentPacketInfo sent_info;
   ReceivedPacketInfo received_info;
 };
 
 // Defines for all types of congestion feedback that will be negotiated in QUIC,
-// kTCP MUST be supported by all QUIC implementations to guarentee 100%
+// kTCP MUST be supported by all QUIC implementations to guarantee 100%
 // compatibility.
 enum CongestionFeedbackType {
   kTCP,  // Used to mimic TCP.
   kInterArrival,  // Use additional inter arrival information.
   kFixRate,  // Provided for testing.
 };
 
 struct NET_EXPORT_PRIVATE CongestionFeedbackMessageTCP {
   uint16 accumulated_number_of_lost_packets;
   QuicByteCount receive_window;
@@ skipping 293 matching lines @@
   NET_EXPORT_PRIVATE friend std::ostream& operator<<(
       std::ostream& os, const QuicConsumedData& s);
 
   size_t bytes_consumed;
   bool fin_consumed;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_PROTOCOL_H_