Import libvpx ebuild.

BUG=chromium-os:33547
TEST=`emerge libvpx` works
TEST=`emerge-amd64-generic libvpx` works
TEST=`emerge-x86-generic libvpx` works
TEST=`emerge-arm-generic libvpx` works

Change-Id: I34e6ee26d66f3eded3fff4e42e0facc60673c10c
Reviewed-on: https://gerrit.chromium.org/gerrit/30196
Reviewed-by: Pawel Osciak <posciak@google.com>
Reviewed-by: Chih-Chung Chang <chihchung@chromium.org>
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
6 files changed