Revert "Revert "Only promote remote animator to top sched group during animation""

This reverts commit b83ab2c4f41683de4d3b79f7a13c50fcf604f468.

Reason for revert: try original CL again with zygote top-app change

Change-Id: I85a381542a334ec043ac392d74895cf57832bc12
Test: TH
bug: 159201879
4 files changed