Changes generated with clang-modernize.
Additionally, fixed some struct-vs-class usage to make clang happy.
Change-Id: Ic6ef2427401ff1e794d26f21f7b44868fc75fb72
Bug: 16161431
Also re-writes RevealAnimator to avoid using any listeners internally,
removing the logic around shadowing the update listeners.
Change-Id: I6ed8126398eed971a87f20bccb7584c9acafbb6c