Let me make them exported via InputAPI to be used by our repo.

Change-Id: I1a0c7f49ab5a3c00b2617062444d67bbb9600837
Reviewed-on: https://chromium-review.googlesource.com/1117958
Commit-Queue: Yoshisato Yanagisawa <yyanagisawa@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>