Sync surface position for legacy app transition animation

With legacy app transition:
1. TaskFragment is resized when it is invisible -> update surface
   position on sync transaction.
2. Activity becomes visible in TaskFragment, which trigger app
   transition.
3. Animation target is promoted to TaskFragment and create animation
   leash -> reset position on pending transaction.
4. Apply pending transaction to start legacy app transition -> 1 is
   applied after 3, which cause the TaskFragment surface position offset
   in animation leash.

This is similar to I74e044f440e40c3c5f99bf0f8c7a601e953dbbc7

Fix: 256689498
Test: Launch Setting into split left with any app, click back to exit
the split right. No flicker when Settings shows in fullscreen.

Change-Id: Id3db698729a5c25df7e50a49caf504b6fa866aa6