GitLab

Reverted in:
https://codereview.chromium.org/2348643002/

Reason for revert:
Fixed gn gen errror

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
BUG=641032

Review-Url: https://codereview.chromium.org/2344063002
Cr-Commit-Position: refs/heads/master@{#419074}