Update from https://crrev.com/304418

net/quic/quic_packet_generator.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.
 //
 // Responsible for generating packets on behalf of a QuicConnection.
 // Packets are serialized just-in-time.  Control frames are queued.
 // Ack and Feedback frames will be requested from the Connection
 // just-in-time.  When a packet needs to be sent, the Generator
 // will serialize a packet and pass it to QuicConnection::SendOrQueuePacket()
 //
@@ skipping 159 matching lines @@
   // Set the minimum number of bytes for the connection id length;
   void SetConnectionIdLength(uint32 length);
 
   // Sets the encryption level that will be applied to new packets.
   void set_encryption_level(EncryptionLevel level);
 
   // Sequence number of the last created packet, or 0 if no packets have been
   // created.
   QuicPacketSequenceNumber sequence_number() const;
 
-  size_t max_packet_length() const;
+  QuicByteCount max_packet_length() const;
 
-  void set_max_packet_length(size_t length);
+  void set_max_packet_length(QuicByteCount length);
 
   void set_debug_delegate(DebugDelegate* debug_delegate) {
     debug_delegate_ = debug_delegate;
   }
 
  private:
   friend class test::QuicPacketGeneratorPeer;
 
   // Turn on FEC protection for subsequent packets in the generator.
   // If no FEC group is currently open in the creator, this method flushes any
@@ skipping 48 matching lines @@
   scoped_ptr<QuicAckFrame> pending_ack_frame_;
   scoped_ptr<QuicCongestionFeedbackFrame> pending_feedback_frame_;
   scoped_ptr<QuicStopWaitingFrame> pending_stop_waiting_frame_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicPacketGenerator);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_PACKET_GENERATOR_H_