tree de812b0dedb89aa080e14b168efc3b27b95e09c0
parent d5af58a193f0cfdb6a994ff4f687a5081877f056
author QUICHE team <quiche-dev@google.com> 1552658620 -0700
committer Copybara-Service <copybara-worker@google.com> 1552658655 -0700

Make CryptoUtils::HashHandshakeMessage return by value

Also, during the handshake, don't hash the CHLO unless the hash is going to be used.

gfe-relnote: No-op refactoring, no functional change, not flag-protected.
PiperOrigin-RevId: 238635063
Change-Id: I76f033c33f436a1e95db5aae9494dbfdf7139ed5