There was a Proposition on Human Trafficing that won in all counties in California (
Prop 35), where the only group that seemed to be against was "Erotic services".
If there was one for porn stars to use protection this year, it must have been a local messure: *found*
Messure B in Los Angeles County
And it "passed". Though the ballots in Los Angeles are still counting those that were mailed in and would take two to three weeks for a final result.
The Porn industry had threated to leave the state if passed.
One can find all the California Propositions and Messures (or a way to find them)
here. It also lists all the proposed ones that didn't make it.