Merge changes Ie3125ec8,Ifa149322,Ifa2ed84a into nyc-dev am: b77d0bcc
am: 174e1ace
* commit '174e1ace':
Tweaking accessibility actions for dock divider.
Ensure that the drag view is not dimmed.
Disallowing scrim activity from setting TaskDescription.
Change-Id: I2609ab70154d9d833d090219a3b49ca9f2d80e89