GitLab

Reverted in
https://codereview.chromium.org/2342243003/

Reason for reland:
Actually fixed gn gen failure.

This will allow monochrome to easily define its own set of the same
targets with a different resource whitelist

TBR=brettw@chromium.org,miu@chromium.org,yutak@chromium.org
BUG=641032

Review-Url: https://codereview.chromium.org/2342023004
Cr-Commit-Position: refs/heads/master@{#419209}