GitLab

To support adjustments to the clock used by a UserModifiableProvider
during testing, the SetClockForTesting function is elevated to be a
virtual member of the class. Most subclasses provided this functionality
by an identical function, with NotificationChannelsProviderAndroid
providing it via custom constructors.

This CL refactors NotificationChannelsProviderAndroid local clock to align
with other existing subclasses and updates associated test code.

Additional changes to the SetClockForTesting on the
HostContentSettingsMap allow it to set the clock on all user_providers
it is aware of.

Bug: 1032584
Change-Id: I068b7179375c0e6ce668ae2f2e4d8c0fcfc71cb7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2000028
Commit-Queue: Theodore Olsauskas-Warren <sauski@google.com>
Reviewed-by: Peter Beverloo <peter@chromium.org>
Reviewed-by: Martin Šrámek <msramek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#732422}