Pushed by sgiesecke@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/bd4efe76e01e Replace custom AutoLock by BaseAutoLock. r=ttung https://hg.mozilla.org/integration/autoland/rev/ed1e4e9212ef Make Manager derive from SafeRefCounted. r=ttung https://hg.mozilla.org/integration/autoland/rev/253861767768 Make Context derive from SafeRefCounted. r=dom-workers-and-storage-reviewers,perry https://hg.mozilla.org/integration/autoland/rev/3366be952ce2 Make InternalRequest derive from SafeRefCounted. r=dom-workers-and-storage-reviewers,perry https://hg.mozilla.org/integration/autoland/rev/c1672bc9a695 Make StreamList derive from SafeRefCounted. r=dom-workers-and-storage-reviewers,perry https://hg.mozilla.org/integration/autoland/rev/beaab31d3a22 Make CacheWorkerRef derive from SafeRefCounted. r=dom-workers-and-storage-reviewers,perry https://hg.mozilla.org/integration/autoland/rev/42ecedc82327 Make ManagerId derive from SafeRefCounted. r=dom-workers-and-storage-reviewers,perry https://hg.mozilla.org/integration/autoland/rev/7030a8580695 Make ThreadsafeHandle derive from SafeRefCounted. r=dom-workers-and-storage-reviewers,asuth https://hg.mozilla.org/integration/autoland/rev/a224abc2539e Use SafeRefPtr for Request. r=dom-workers-and-storage-reviewers,perry