Include specialized copy of libskia for playback of Saved Webpages.

cherry-picked from 6eae0292a8aa7a2374f35ebb8a9de801c9421761 of tuna

This CL gives prime devices the ability to display saved pages in the
Android browser that were recorded with a previous version of Skia.

Change-Id: I81241cda20e3bea3edcc60d92f324575491698eb
Signed-off-by: Pawit Pornkitprasan <p.pawit@gmail.com>