* Strangely if you swipe up with a split pair
and then tap on the live tile to go back to
fullscreen this animates fairly correctly.
However, if you drag the focused pair back to fullscreen
the bottom app does not unclip as expected
Bug: 219411750
Test: Swipe up w/ stashed taskbar in portrait.
Thumbnail cutout doesn't appear when dragging to
fullscreen
Change-Id: Ia6e7aae10389d9fefa4adbfce540171bbe0a9180
Vinit Nayak
3b1f5849ce