tree 9c1b110304f7ee4edf9be9f93db8a20165d520fa
parent 9a0507249571eda19c6368d90f1e4eb3b20e4026
author dschinazi <dschinazi@google.com> 1603479946 -0700
committer Copybara-Service <copybara-worker@google.com> 1603479977 -0700

Add code counts for building version negotiation packets

This'll help us decide for how long we need to keep supporting older version negotiation formats.

PiperOrigin-RevId: 338719125
Change-Id: Ib9002c5879de3f9fa4cb19e7fc71ee8cb5f37367