tree 2e83e24d67186a1dae3f73f521be1349a33a0f37
parent c7862ca8530040d85991b60b7740168d047a5743
author Shawn O. Pearce <sop@google.com> 1319041851 -0700
committer Shawn O. Pearce <sop@google.com> 1319042046 -0700

Assume mostly positive values in protobuf encoding

This is a change to the encoding scheme, but Gerrit Code Review
(our only downstream library consumer that matters) only needs to
store positive values.  Positive values encode smaller with the
int32/int64 format than the sint32/sint64 format.

Change-Id: I5bd93592c59b66b8147133ff33f94be51e5490ed