am ec8178eb: Merge change I9c1bad53 into eclair

Merge commit 'ec8178eb0fb10e1ed753be4d065cf7f004355575' into eclair-mr2

* commit 'ec8178eb0fb10e1ed753be4d065cf7f004355575':
  Add setPriority to allow wallpapers to run at lower cpu priority than default.