The source from this directory was copied from the libvpx
git repository using the update.py script. The only changes
made were those applied by update.py and the addition of
moz.build and Makefile.in build files for the
Mozilla build system.

The libvpx git repository is:

    https://chromium.googlesource.com/webm/libvpx

The git commit ID used was f80be22a1099b2a431c2796f529bb261064ec6b4