GitLab

If a NotificationDelegate calls RemoveNotification in the Close handler
we're currently ending up in an endless loop. Instead remove the
Notification from the list before calling Close so the next call exits
early and is a noop as expected.

Bug: None
Change-Id: I7ed211ba1bf78a33255211090bfbd11e986dfc3f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2330019Reviewed-by: Peter Beverloo <peter@chromium.org>
Commit-Queue: Richard Knoll <knollr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#794159}