[PSS] Make the sync-requested pref false while stopping (and clearing)

This CL makes sure the sync-requested pref is set to false while the
individual data types are being stopped. This is needed by the Directory
version of the Wallet DTC (as revealed by a sync integration test for
wallet data Directory implementation that was temporarily disabled while
PSS code has changed).

Bug: 853688
Change-Id: If738c13ad1d8c8fe82439f47f6127508e7155a85
Reviewed-on: https://chromium-review.googlesource.com/c/1433624
Commit-Queue: Jan Krcal <jkrcal@chromium.org>
Reviewed-by: Marc Treib <treib@chromium.org>
Cr-Commit-Position: refs/heads/master@{#625759}
2 files changed