Merge changes Ie3125ec8,Ifa149322,Ifa2ed84a into nyc-dev am: b77d0bcc
am: e5c29212
* commit 'e5c29212':
Tweaking accessibility actions for dock divider.
Ensure that the drag view is not dimmed.
Disallowing scrim activity from setting TaskDescription.
Change-Id: I71239d975064ec7fd9d03403c367a9267673f6e9