base

Fix recents from/to full screen app transition.

The window would get cutoff at the bottom due to the way we calculate
the stack crop. The crop seems to be applied on the window before
scaling/translation is applied, so we need to use windows frame
coordinates instead of surface position.

Change-Id: I0015b9c1d1fe8e7ce8b6d94dacb5a465ff956a0c