Fix weird QS Edit bug

Turns out code is best written while looking at it. Don't set the
layout params on the density container to layout params from another
view. Firstly its not fair to the density container or the qs container.
Secondly it makes the notification panel jealous and it starts eating
all the touches it can find.

Bug: 27586350
Change-Id: I2f8a7c23eda4625cc65390da1e854e5033b179a6