Include specialized copy of libskia for playback of Saved Webpages.
This CL gives prime devices the ability to display saved pages in the
Android browser that were recorded with a previous version of Skia.
Remove make_ext4fs from PRODUCT_PACKAGES
This has been in the core package set since 4.2.
update media_codecs.xml for 4.3
Add GSM decoder explicity
Add VPX encoder (now required for 4.3 compatibility)