GitLab

Bubble locking was used to prevent bubbles from being dismissed after
deactivation. This CL adds general widget blocking by preventing
widgets from being dismissed after deactivation. The impl extends the
ways of disabling widget activation changes to achieve that.

Bug: 1167285
Change-Id: I8b67a7d00e1f1fb9f598d51460e162d111b3110b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2638000
Commit-Queue: Wei Li <weili@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#845374}