tree 64e2cfc795a03e143cbc0f2f3049ae3268b5a5de
parent 4ac74aac56483096e0a40674e39f6852173c7616
author Jérôme Lebel <jlebel@chromium.org> 1743417831 -0700
committer Chromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1743417831 -0700

[iOS][Waffle] Add device restore timestamp

This patch updates the APIs to detect a restore on iOS, to add
a timestamp for the latest restore.

Before this patch, `IsFirstSessionAfterDeviceRestore()` loads the
restore device state into cache (if it was not loaded yet) and returns
the value.

With this patch, `LoadDeviceRestoreData()` is called `IsFirstSessionAfterDeviceRestore()` and it loads the data if it
was not yet loaded.
`IsFirstSessionAfterDeviceRestore()` still returns the same value.
And `LastDeviceRestoreTimestamp()` is added to know when was the
last device restore value.

For crrev.com/c/6396506, `ResetDeviceRestoreDataForTesting()` is added
for test purposes.

This is required for crrev.com/c/6396506

Bug: 404176285
Change-Id: I835dd4ca7cfafb7fa529f1dfdc3e4ad15f208650
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6400794
Auto-Submit: Jérôme Lebel <jlebel@chromium.org>
Commit-Queue: Nicolas Dossou-Gbété <dgn@chromium.org>
Commit-Queue: Jérôme Lebel <jlebel@chromium.org>
Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
Reviewed-by: Nicolas Dossou-Gbété <dgn@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1440183}