GitLab

Making use of available strong FormRendererId and FieldRendererId types
in iOS code.

Change-Id: I9b551f3dd03b9b8239f67606359274d781354967
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2414222Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Reviewed-by: Olivier Robin <olivierrobin@chromium.org>
Reviewed-by: John Wu <jzw@chromium.org>
Reviewed-by: Matthias Körber <koerber@google.com>
Commit-Queue: Maria Kazinova <kazinova@google.com>
Cr-Commit-Position: refs/heads/master@{#808046}