Notes:
- The VP9 one is failing claiming that the util package
doesn't exist and that LibraryLoader cannot be found.
Unsure why, since it appears to be setup exactly like
other extensions (e.g. Opus) that does work.
- @link across modules will not work when generating
Javadoc for a single module. This is WAI. I subsequent
change will add an aggregated Javadoc generator that
will generate Javadoc for all modules together and
apply cross module @link correctly.
Issue: #2139
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=150864273
88e74ef381