Remove/replace many profile_sync_service.h includes

Most places only need to include sync_service.h.
This also resolves a bunch of IWYU issues (things that used to be
transitively included via profile_sync_service.h).

Bug: 924508
Change-Id: Ic3786f485b5530dcbacdb02a8c4cc8938291c971
Reviewed-on: https://chromium-review.googlesource.com/c/1477604
Reviewed-by: Mikel Astiz <mastiz@chromium.org>
Commit-Queue: Marc Treib <treib@chromium.org>
Cr-Commit-Position: refs/heads/master@{#633682}
15 files changed