[tbb-bugs] #16337 [Applications/Tor Browser]: Investigate whether Animations(Player) API provides new high resolution timestamp

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#16337: Investigate whether Animations(Player) API provides new high resolution
timestamp
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 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  task                                 |         Status:
                                                 |  needs_review
 Priority:  High                                 |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  ff52-esr, tbb-fingerprinting-time-   |  Actual Points:
  highres, tbb-7.0-must-alpha,                   |
  TorBrowserTeam201705R                          |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
                                                 |  Sponsor4
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Comment (by mcs):

 Replying to [comment:13 arthuredelstein]:
 > Here's a patch for review:
 > https://github.com/arthuredelstein/tor-browser/commit/16337

 This patch looks okay. Do we also need to patch `GetCurrentTimeAsDouble()`
 inside `dom/animation/AnimationTimeline.h`? Kathy and I are not sure how
 the Animation.timeline object relates to the other timing information.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16337#comment:18>
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