am 6be23712: Merge "Free created FileMap when uncompressing files" into gingerbread

Merge commit '6be237120e9673e3cfc5243da5bbca287effcf09' into gingerbread-plus-aosp

* commit '6be237120e9673e3cfc5243da5bbca287effcf09':
  Free created FileMap when uncompressing files