am 22186a2c: am ec8178eb: Merge change I9c1bad53 into eclair

Merge commit '22186a2c15cc752cfaaf8a12d415a3c097d338e0' into eclair-mr2-plus-aosp

* commit '22186a2c15cc752cfaaf8a12d415a3c097d338e0':
  Add setPriority to allow wallpapers to run at lower cpu priority than default.