am 8f31c230: am 57ce0888: Merge change Id22c0137 into eclair

Merge commit '8f31c23021a3f8164eee08cf904c3f083ddfc3d2' into eclair-mr2-plus-aosp

* commit '8f31c23021a3f8164eee08cf904c3f083ddfc3d2':
  Throttle low priority RS threads by sleeping once per frame to avoid starving other apps.