tree 528e9f94dcd85d2cc245dbb3142bc3b924ab5cf1
parent 16a28e17bb148e6417b078f0bcd83790a75bdfc4
author Primiano Tucci <primiano@google.com> 1511439532 +0000
committer Primiano Tucci <primiano@google.com> 1511454487 +0000

Minor improvements to ProtoZero

In preparation of next CLs. The major changes are:
- Dropping the size discount logic in ProtoZeroMessage. Turns
  out that is too awkward a callback on finalization is cleaner.
- Adds a callback to the message handle. This will be used to write the
  packet header in the shared buffer once messages are finalized.

Also introduces the root proto for next CLs.

Change-Id: I284c366d4586d4856322ec796d69e5b2bc995020