build_api_config.proto: New config message for the API

This will be included as a new argument to the build_api script
to provide a backwards compatible API configuration mechanism.

BUG=chromium:1040978
TEST=./generate.sh

Change-Id: Ib9aca6894bd9303b56c5ae84c91adaffb95d23f0
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/1995449
Commit-Queue: Alex Klein <saklein@chromium.org>
Tested-by: Alex Klein <saklein@chromium.org>
Auto-Submit: Alex Klein <saklein@chromium.org>
Reviewed-by: Michael Mortensen <mmortensen@google.com>
3 files changed