a6bdb0990a
This will allow PeerConnection to handle hopping to the right thread and doing thread-specific initialization for the PortAllocator. This eliminates a required thread-hop for whatever is passing the PortAllocator into CreatePeerConnection. BUG=617648 R=pthatcher@webrtc.org, skvlad@webrtc.org Review URL: https://codereview.webrtc.org/2097653002 . Cr-Commit-Position: refs/heads/master@{#13283}