[tor-bugs] #2781 [Torbutton]: Review Robert Hogan's WebKit patches

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#2781: Review Robert Hogan's WebKit patches
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 Reporter:  mikeperry                                              |          Owner:  mikeperry
     Type:  task                                                   |         Status:  new      
 Priority:  normal                                                 |      Milestone:           
Component:  Torbutton                                              |        Version:           
 Keywords:  MikePerryIteration20110403 TorbuttonIteration20110403  |         Parent:           
   Points:  3                                                      |   Actualpoints:           
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Comment(by mikeperry):

 Ok, this sounds great, then. I have one more question about the patch, and
 some other general questions that I might as well write here.

 First, what about bit depth? window.screen has pixelDepth and colorDepth.

 Also, do you happen to know if the new WebGL stuff gets this same
 information? It looks like WebGL also has a way of telling you things
 about the display: https://www.khronos.org/registry/webgl/specs/1.0/#5.2
 (and 5.11).

 I suspect it may be different, though, because it probably comes directly
 from OpenGL :/

 Finally, there appears to be new fingerprinting bits in the DOM Range
 stuff for HTML5:
  https://developer.mozilla.org/en/dom:range
  https://developer.mozilla.org/en/DOM/element.getBoundingClientRect

 It looks like you can get the rendered pixel size of arbitrary content
 elements, which is a fingerprint source.. Perhaps these should be added to
 your webkit Fingerprinting page. Probably beyond the scope of this patch.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/2781#comment:4>
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