am 7580493b: Implement feature #2117336: Create event communication APIs for live wallpaper

Merge commit '7580493b014a2c7ea883cd291255798dc72ebbff' into eclair-plus-aosp

* commit '7580493b014a2c7ea883cd291255798dc72ebbff':
  Implement feature #2117336: Create event communication APIs for live wallpaper