[Tango->FCM] Change the experiment name to match the trial config

Change-Id: If05f20ee2299704349e70ef13bd1ccec0463cd85
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1599450
Commit-Queue: Tatiana Gornak <melandory@chromium.org>
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#658560}
1 file changed