Fix snooze guts disappearing in split shade

In split shade the NSSL is no longer full screen, so the assumption that getX was the absolute X coordinate of the touch was wrong; as a result the NSSL dismissed the guts because it thought the touch was somewhere in the NSSL but not in the guts view (or any other view).

Fixes: 204283146
Test: manual
Change-Id: I634d378e162e20ed277b164a506d7dace56c8525