Simplify ProfileSyncService::IsSyncConfirmationNeeded

This removes checks for !IsLocalSyncEnabled() and IsSignedIn(), which
are implied by IsAuthenticatedAccountPrimary().
With this, IsSyncConfirmationNeeded is implemented fully in terms of
the public SyncService interface, which means we'll be able to move it
out of ProfileSyncService in a followup.

Bug: 884159
Change-Id: I532065b4517e2156c32b8eb91bf613ba23c4a267
Reviewed-on: https://chromium-review.googlesource.com/c/1356543
Reviewed-by: Florian Uunk <feuunk@chromium.org>
Commit-Queue: Marc Treib <treib@chromium.org>
Cr-Commit-Position: refs/heads/master@{#612626}
1 file changed