Revert "Notifications: Delay closing out of workarea bounds pop-ups."

This reverts commit 42b45514d9a2859e5462d6ebace35d7081fab26a.

Reason for revert: Broke Mac 10.10 and 10.11 builders, see crbug.com/957033

Original change's description:
> Notifications: Delay closing out of workarea bounds pop-ups.
> 
> When the pop-up is expanded to show inline settings, the new height can overflow
> the work area. Deleting the pop-up in this scenario triggers a crash as we're
> still in the same call stack.
> 
> BUG=957033
> 
> Change-Id: Ie8d4db393893b662b72f9c04317f9ca640a25607
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1600155
> Commit-Queue: Tim Song <tengs@chromium.org>
> Reviewed-by: Peter Boström <pbos@chromium.org>
> Reviewed-by: Peter Beverloo <peter@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#658793}

TBR=peter@chromium.org,tengs@chromium.org,pbos@chromium.org

Change-Id: Ie8f23f1a0e12c4c61386458e03d426c84b47dd88
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 957033
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1607640
Reviewed-by: Dominic Battré <battre@chromium.org>
Commit-Queue: Dominic Battré <battre@chromium.org>
Cr-Commit-Position: refs/heads/master@{#658879}
6 files changed