base

- Consolidate all animations in a single place outside of layout loop.
- Move mPolicy.startAnimationLw and mPolicy.finishAnimationLw into same method as mPolicy.animatingWindowLw.
- Fix first parameter of performLayoutLockedInner(initial, ...) to pass true on initial pass.

Change-Id: If1b47bb8a7e03cf427769c657e371abc0910b3e3