[AF] Use fake time in sync integration tests for wallet metadata

This change makes the tests more robust and easier to read.

Bug: 894001
Change-Id: I3e147d4384d6119563dd6cf907e024af298ad6a6
Reviewed-on: https://chromium-review.googlesource.com/c/1358504
Commit-Queue: Jan Krcal <jkrcal@chromium.org>
Commit-Queue: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Reviewed-by: Sebastien Seguin-Gagnon <sebsg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#613147}
1 file changed