tree c6e529db5862ed93f337c2a84bc58ff010db0380
parent f41bf64c347693484d5ffeab03fd85674bb0f2a7
author QUICHE team <quiche-dev@google.com> 1554240091 -0400
committer Victor Vasiliev <vasilvv@google.com> 1554250165 +0000

Set QUIC's max packet size to whatever Quartc configures.

Currently, Quartc only configures the max packet size on the packet writer.
However, the QuicConnection keeps its own, separate max packet size.  This is
set from a constant in quic_constants.h (kDefaultMaxPacketSize = 1350 for
clients or kDefaultServerMaxPacketSize = 1000 for servers).

Calling QuicConnection::SetMaxPacketLength() updates the connection's value to
match the packet writer's value.

The effect can be confirmed by running Quartc tests.  Before this change, we saw
1000 bytes as the max packet size on the server:
Packet size stats=[mean = 349, stddev = 394, min = 19, max = 1000, 25% = 36, 50% = 130, 75% = 787, 90% = 1000]

After this change, we observe 1200 bytes as the max packet size in both
directions:
Packet size stats=[mean = 262, stddev = 432, min = 19, max = 1200, 25% = 29, 50% = 35, 75% = 141, 90% = 1200]

gfe-relnote: n/a (Quartc only)
PiperOrigin-RevId: 241603141
Change-Id: I9da1c0dcfa37af22c2f0decdf27f9081eec22444