[tor-bugs] #21850 [Applications/Tor Browser]: Update #16940 patch for e10s (about:tbupdate)

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#21850: Update #16940 patch for e10s (about:tbupdate)
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 Reporter:  arthuredelstein                      |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:
                                                 |  needs_review
 Priority:  Medium                               |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  ff52-esr, tbb-e10s, tbb-7.0-must,    |  Actual Points:
  TorBrowserTeam201801R                          |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by mcs):

 We forgot about comment:9. Here is an additional fixup patch that forces
 about:tbupdate to always be loaded in a content process:
 https://gitweb.torproject.org/user/brade/tor-
 browser.git/commit/?h=bug21850-01&id=7a7c6b380c95a00f3091aa8f79c24bd76a0a2cbc

 It seems safer to do this and should not cause any harm (we already force
 the same behavior for about:tor).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21850#comment:17>
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