am 0b9382c7: Separate out Proguard flag files to fix dependency.

Merge commit '0b9382c792c303a93f5805adf4eba377dac01950' into gingerbread-plus-aosp

* commit '0b9382c792c303a93f5805adf4eba377dac01950':
  Separate out Proguard flag files to fix dependency.