[Webkit-unassigned] [Bug 33150] Do not render the full frame when there is some elements with fixed positioning

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=33150





--- Comment #81 from Adam Treat <treat at kde.org>  2010-03-10 06:56:37 PST ---
 > I have to admit I don't get the difference between
> invalidateContentsForSlowScroll() and invalidateContentsAndWindow(). It seems
> specific to the way Windows handle scrolling, I trust you on that one.

The latter (in the way you are using it) notifies that the provided rect needs
to be repainted to the backingstore and then copied to the screen. 
Asynchronously.

The former (in the way you were using it) notifies that the provided rect needs
to be repainted to the backingstore.  Asynchronously.

I believe that it should be done synchronously, but hyatt and apple's windows
port disagree.  But that is for another day.

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