GitLab

Verify that notifications are correctly serialized, that user actions
in the remote message center are proxied back, and that notifications
can be closed.

Inject the mojo::Remote<crosapi::mojom::MessageCenter> into the
constructor to make this possible.

Bug: 1113889
Change-Id: I9962b05c7fe637c0235f51bdfa56e78f7fb5de51
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2350316
Commit-Queue: James Cook <jamescook@chromium.org>
Reviewed-by: Jun Mukai <mukai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#798034}