cbuildbot: simplify running chromite commands
Rather than make every helper command that runs a program in chromite
figure things out, add a keyword to _RunBuildScript to centralize it.
BUG=chromium:209442
BUG=chromium:213204
TEST=`./buildbot/run_tests` passes
Change-Id: I18156e6e9cf1c886c6382944409573a9ed93455b
Reviewed-on: https://gerrit.chromium.org/gerrit/58624
Reviewed-by: David James <davidjames@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
1 file changed
