Move some animation functions in AppTransition to new TransitionAnimation class for wm-shell using. Bug: 175053726 Test: build Change-Id: I7eef67359fd4532f7e4d97c787d5288362a32f13
Move some animation functions in AppTransition to new TransitionAnimation class for wm-shell using. Bug: 175053726 Test: build Change-Id: I7eef67359fd4532f7e4d97c787d5288362a32f13