Force field trials for autofill captured sites tests.

This will force the test to forward autofill type prediction requests
to the autofill prod server rather than the beta server.

Bug: 847905
Change-Id: Idffd53d677017e194479b940b1764351b09ec4b9
Reviewed-on: https://chromium-review.googlesource.com/c/1475931
Auto-Submit: Yiming Zhou <uwyiming@google.com>
Reviewed-by: Fabio Tirelo <ftirelo@chromium.org>
Commit-Queue: Fabio Tirelo <ftirelo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#633119}
1 file changed