This replaces the tunnel using a new nr_socket implementation. Proxy detection
code is still done in the peer connction. However, the result is only used to
detect a proxy. The result is unused. Address resolution is done by necko code
in the parent process. The new socket wraps a WebrtcProxyChannel which uses
necko to handle proxy negotiation. This has a happy side effect of enabling all
authentication modes that necko already supports for http proxies.
This adds a protocol for Necko to manage, WebrtcProxyChannel. This new protocol
serves as a pipe for a CONNECT tunnel. It is only used in WebRtc and not built
in no WebRtc builds.
--HG--
extra : rebase_source : a951841f95eaaa0562886cf76b405b01f1adf70e
extra : intermediate-source : 5c3da21957fc80b07188bc8a405437b858027a22
extra : source : 594a32883463ab051677ba06e22fa6d062b4b4a9
