[Webkit-unassigned] [Bug 119836] webkitgtk will freeze gui when time go back to past

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=119836





--- Comment #3 from snyh <snyh at snyh.org>  2013-08-19 18:25:35 PST ---
It's not only dropping one frame, it freeze the whole GUI rendering!!!(only webkitgtk, qtwebkit hasn't this problem)

You can run any GUI program based on webkitgtk and then adjust system time go back one hour(or more) then any GUI is freeze. 




(In reply to comment #1)
> Do you have a reproducible test case that shows the problem?
> 
> Technically, timeSinceLastDisplay can end up being negative, but it would in the worst case simply cause skipping one paint (dropping a frame).
> This can be avoided by using WTF::monotonicallyIncreasingTime() instead of WTF::currentTime().

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