
Reason for revert:
Probably cause unexpected performance regression
BUG=chromium:678569
Original issue's description:
> Refactor webrtc_perf_tests into several source_sets.
>
> BUG=webrtc:6954
>
> Review-Url: https://codereview.webrtc.org/2609403002
> Cr-Commit-Position: refs/heads/master@{#15902}
> Committed: 0b5a26a576
TBR=kjellander@webrtc.org,ehmaldonado@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:6954
Review-Url: https://codereview.webrtc.org/2613913002
Cr-Commit-Position: refs/heads/master@{#15916}