d197cd9ad9
Reason for revert:
Internal dependency has been removed.
Original issue's description:
> Add empty header to fix internal project.
>
> BUG=None
> TBR=tommi@webrtc.org
>
> Review-Url: https://codereview.webrtc.org/2790493006
> Cr-Commit-Position: refs/heads/master@{#17492}
> Committed: 16d5bae396
TBR=kjellander@webrtc.org,tommi@webrtc.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=None
Review-Url: https://codereview.webrtc.org/2795683002
Cr-Commit-Position: refs/heads/master@{#17503}