result_flow: add request/response proto for test_runner sub-command

BUG=chromium:1100999
TEST=./generate.sh

Change-Id: I2a73025c1021d148d99203bfac83b41df07e7c56
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2276179
Reviewed-by: Alex Zamorzaev <zamorzaev@chromium.org>
Commit-Queue: Xinan Lin <linxinan@chromium.org>
Tested-by: Xinan Lin <linxinan@chromium.org>
2 files changed