Printers in the list of printers change position.

1. The printers in the printers list of settings change position if
   they are updated. The settings app is using hidden platform APIs
   the this change fixes.

2. Enable ProGuard for the PrintSpooler.

3. Added icons on the list of printers so the user knows which
   print service used the printer. Now the user can know when
   he is using cloud print and maybe incurring data costs vs
   local printer discovered by a vendor plug in.

bug:10955751

Change-Id: I292f48b424cb561218fdb424d0388f4d786d8339
4 files changed