am 9ce081aa: Merge change 7551 into donut

Merge commit '9ce081aa2493dc163a42decfd4e1756b5c55a834'

* commit '9ce081aa2493dc163a42decfd4e1756b5c55a834':
  Add ability to delay messages in Filter based on constraint.  Use this to delay 500ms for delete keys in the search dialog.