[Segmentation platform] Add field trial testing config for structured
metrics

Change-Id: Iab97e6e5096e79d720f14f2001dbcefa5ee02277
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3670713
Reviewed-by: Shakti Sahu <shaktisahu@chromium.org>
Commit-Queue: Min Qin <qinmin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1007852}
NOKEYCHECK=True
GitOrigin-RevId: 2392b20fefb2ab77da0eb46d20b38637b2d623f9
1 file changed