Don't stage content drawn bounds

It's certainly not needed for two up, so remove the staging aspect.

Freeform resizing is currently broken because of another bug so this
can't be tested, but because we are not "shipping" it in any case
fixing the 2-up bug is more important, but it shouldn't break freeform
anyways.

Bug: 28618501
Change-Id: I6f285a714281fde50fd7328a3f8999cfa8dfb2c5