githooks: make the test runner run on presubmits

Also renames a few things for clarity.

BUG=None
TEST=repo upload

Change-Id: I7fec9cc90be7cea7dac69aae61942ebdd8868247
Reviewed-on: https://chromium-review.googlesource.com/1544903
Commit-Ready: George Burgess <gbiv@chromium.org>
Tested-by: George Burgess <gbiv@chromium.org>
Reviewed-by: George Burgess <gbiv@chromium.org>
3 files changed