[AF] Hook ProfileSyncService into PersonalDataManager in the factory

This CL consolidates the calls to PDM::OnSyncServiceInitialized() to a
single place -- the factories of ProfileSyncService.

This CL removes the calls from sync integration tests, AutofillManager,
and AutofillProfileDataTypeController. The calls remain in unit-tests
which do not exercise the PSS factory.

Bug: 913947
Change-Id: I0b6941065f02f88650c0bb83333435ce0b37a1da
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1564113
Reviewed-by: Roger McFarlane <rogerm@chromium.org>
Reviewed-by: Marc Treib <treib@chromium.org>
Commit-Queue: Jan Krcal <jkrcal@chromium.org>
Auto-Submit: Jan Krcal <jkrcal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#653970}
9 files changed