bug 815002 - fix browser_device_get_user_media.js to work with --use-test-media-devices. r=florian
bug 815002 - Enable loopback devices on Linux Mochitests. r=ahal
Bug 1017228: Any URL on the blocklist should trump allowlisting (r=gcp)
Bug 1018621 - Fix strict mode arguments observability in Ion. (r=nbp)
Bug 1018476 - Untemplatize InlineFrameIterator. (r=djvj)
merge inbound to m-c