Use sf animation handler in PIP PhysicsAnimator

To reduce jank caused by vsync app, replace whole animation handler
in PhysicsAnimator used by PIP to sf animation handler.

Bug: 159313747
Test: Launch PIP app and drag it around
Merged-In: Iebee75d071fecc2d98d4871d47d83a4b4143b94e
Change-Id: Iebee75d071fecc2d98d4871d47d83a4b4143b94e
(cherry picked from commit 7016e97d)