am 838e93ed: Merge "Looper: Drop default parameters in favor of a safer overload." into gingerbread

Merge commit '838e93ed19879ce3d88b5be51630137d6a6999c6' into gingerbread-plus-aosp

* commit '838e93ed19879ce3d88b5be51630137d6a6999c6':
  Looper: Drop default parameters in favor of a safer overload.