Avoid improperly removing views during transitions

Bug: 65715616

There are two places where views were being removed improperly
during transitions. The first was when making a copy of a view.
Because of hardware bitmaps, views were being moved to the overlay
so that the image could be copied. This CL moves the view back
into its parent after copying the image.

The second location is where the view was being considered an
overlay. When a view is in the starting scene and the view in
the end scene cannot be used, the starting scene view was being
moved to the overlay. This is only valid when the view is alowed
to be removed. Instead, a bitmap copy of the view is moved to
the overlay.

Test: manual testing
Test: I0456d8a699525b08b044236c558b2d84b48c29a6
Change-Id: Ieb32b146cf65e3ff4ed6d7bb8325e74763dbd2d5