[tor-bugs] #19459 [Applications/Tor Browser]: Write (C++) patch for window resizing parts

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#19459: Write (C++) patch for window resizing parts
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 Reporter:  gk                                   |          Owner:
                                                 |  arthuredelstein
     Type:  task                                 |         Status:
                                                 |  needs_review
 Priority:  Medium                               |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-torbutton-conversion,            |  Actual Points:
  TorBrowserTeam201609R                          |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
                                                 |  SponsorU
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Changes (by arthuredelstein):

 * keywords:  tbb-torbutton-conversion, TorBrowserTeam201608 => tbb-
     torbutton-conversion, TorBrowserTeam201609R
 * status:  needs_revision => needs_review


Comment:

 Here's my new version:
 https://github.com/arthuredelstein/tor-browser/commit/19459+5
 I no longer need to use a MutationObserver or anything too nasty.
 Basically I found that if we set the tabBrowser's flex attribute to 0,
 then the XULWindow adjusts its size to conform with whatever tabBrowser
 width and height we specify. Then we can set flex back to 1 when the
 window is first painted.

 And here's the new window sizing code removed from torbutton:
 https://github.com/arthuredelstein/torbutton/commit/19459

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/19459#comment:8>
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