GitLab

IUpdater::UpdateAll now takes an IUpdaterObserver interface that it
will eventually use to sink events.

Bug: 1053729
Change-Id: I2a2a9813e2b33c4496b286329084b0e21478ba9c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2101934
Commit-Queue: S. Ganesh <ganesh@chromium.org>
Auto-Submit: S. Ganesh <ganesh@chromium.org>
Reviewed-by: Sorin Jianu <sorin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#750274}