[tbb-bugs] #21862 [Applications/Tor Browser]: Make rust code in ESR 52 proxy safe

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#21862: Make rust code in ESR 52 proxy safe
-------------------------------------+-------------------------------------
     Reporter:  gk                   |      Owner:  tbb-team
         Type:  defect               |     Status:  new
     Priority:  Medium               |  Milestone:
    Component:  Applications/Tor     |    Version:
  Browser                            |   Keywords:  ff52-esr,
     Severity:  Normal               |  TorBrowserTeam201704, tbb-7.0-must-
                                     |  alpha
Actual Points:                       |  Parent ID:
       Points:                       |   Reviewer:
      Sponsor:  Sponsor4             |
-------------------------------------+-------------------------------------
 Even though we don't use any Rust in ESR 52 we should get rid of proxy
 bypassing calls for safety and to remind us for later:

 third_party/rust/url/src/host.rs has a to_socket_addrs and ToSocketAddrs
 methods.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21862>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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