Update sync rt applier for background blur

- Copy surface params builder to compat class
- Add calls to set background blur
- Make recents/app transition leashes effect layers so blur can be set
  on them

Bug: 149792636
Test: Build with launcher with blurs enabled
Change-Id: I4cebcab090719c6a17f197a3cd4450d68e55b424
8 files changed