Have the pipeline process working. Added the unit test for this class.

BUG=None
TEST=None

Change-Id: I7fe9fd5b1610959399000b1dfc9b6db55c5c28fb
Reviewed-on: https://gerrit-int.chromium.org/39473
Reviewed-by: Luis Lozano <llozano@chromium.org>
Tested-by: Yuheng Long <yuhenglong@google.com>
Commit-Queue: Yuheng Long <yuhenglong@google.com>
2 files changed