[tor-bugs] #18958 [Applications/Tor Browser]: screen.orientation should lie

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#18958: screen.orientation should lie
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 Reporter:  mcs                              |          Owner:
     Type:  defect                           |  arthuredelstein
 Priority:  Medium                           |         Status:
Component:  Applications/Tor Browser         |  needs_review
 Severity:  Normal                           |      Milestone:
 Keywords:  ff45-esr, TorBrowserTeam201605R  |        Version:
Parent ID:                                   |     Resolution:
 Reviewer:                                   |  Actual Points:
                                             |         Points:
                                             |        Sponsor:
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Comment (by arthuredelstein):

 Replying to [comment:5 mcs]:
 > r=mcs, r=brade
 > These changes look good. Should we also skip dispatching of the
 orientation change events when ShouldResistFingerprinting() returns true?
 Generating the events will allow a website to detect that my device can
 change orientation.

 Thanks for the review. Here's a new version that blocks
 "orientationchange" and "mozorientationchange" events from being
 dispatched. I also blocked the use of 'screen.mozLockOrientation' and
 'screen.mozUnlockOrientation' for a similar reason.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18958#comment:6>
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