[Sync::USS] Encrypt passwords in NonBlockingTypeCommitContribution

This is necessary for full-blown USS.

Bug: 902349
Change-Id: I1de4a3ac610151feb236c2f1696ba22b9f047568
Reviewed-on: https://chromium-review.googlesource.com/c/1336129
Commit-Queue: Mohamed Amir Yosef <mamir@chromium.org>
Reviewed-by: Mikel Astiz <mastiz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611620}
2 files changed