[AF USS] Implement GetAllDataForDebugging for the wallet data bridge.

Bug: 853688
Change-Id: Ibac26f2adab7a360d866e3abc75b36f0bab8ab51
Reviewed-on: https://chromium-review.googlesource.com/1152085
Commit-Queue: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Reviewed-by: Jan Krcal <jkrcal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#580896}
11 files changed