[tor-bugs] #14205 [Tor Browser]: Closely review all uses of IsCallerChrome() for e10s

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#14205: Closely review all uses of IsCallerChrome() for e10s
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     Reporter:           |      Owner:  mcs
  mikeperry              |     Status:  assigned
         Type:  task     |  Milestone:
     Priority:  major    |    Version:
    Component:  Tor      |   Keywords:  tbb-fingerprinting, tbb-e10s, tbb-
  Browser                |  rebase, ff38-esr
   Resolution:           |  Parent ID:
Actual Points:           |
       Points:           |
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Comment (by arthuredelstein):

 FWIW, I tried to minimize IsCallerChrome() usage in https://hg.mozilla.org
 /mozilla-central/rev/3abb08512b24, which is a port of #13016, #13025,
 #5856, #4755, and #2875. In that version, IsCallerChrome() is only being
 used in dom/events/Event.cpp.

 I suppose we could backport this patch to ESR38 and use it to replace the
 corresponding tor-browser.git patches, if that seems safer. There are
 probably further uses of IsCallerChrome() in other tor-browser.git
 patches, though.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/14205#comment:6>
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