[AF] Integration tests for changing additional info for wallet metadata

This CL adds more integration tests; it also fixes a bug that
stopped local changes of billing address and local changes of
has_converted to get propagated to sync.

Bug: 894001
Change-Id: Idd91e6799afd3c936b76ac8b1a6851abc67b5ad7
Reviewed-on: https://chromium-review.googlesource.com/c/1333819
Reviewed-by: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Commit-Queue: Jan Krcal <jkrcal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#608003}
7 files changed