GitLab

This restores behavior broken by 6670c336

Change the name of BackgroundApplicationListModel::is_ready() to
startup_done() to disambiguate from ExtensionService::is_ready().

Move BackgroundContentsService observation to OnExtensionSystemReady()
so we don't run BackgroundApplicationListModel::Update() too early.
Note that it's not sufficient to check whether the ExtensionService is
ready because it may return true before
BackgroundApplicationListModel::OnExtensionSystemReady runs.

Bug: 1008890
Change-Id: Ib3e5013e7857e7a9aa6f94ed6b43f3839e08fe00
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1837486Reviewed-by: Drew Wilson <atwilson@chromium.org>
Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Commit-Queue: Evan Stade <estade@chromium.org>
Cr-Commit-Position: refs/heads/master@{#703319}