Prepare AutofillStructuredAddress for i18n data model launch.

The CL updates AutofillStructuredAddress unit tests by default enabling
all the features related to the i18n data model launch.

Note that most of these tests are targeting the legacy hierarchy. Tests
on custom hierarchies are at the bottom of the file.

Bug: 325027274
Change-Id: I534128dd73de63f19d81133fd0c6876cb8e9f9c7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5614530


Reviewed-by: Dominic Battré <battre@chromium.org>
Commit-Queue: Norge Vizcay <vizcay@google.com>
Code-Coverage: findit-for-me@appspot.gserviceaccount.com <findit-for-me@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1312992}