[Webkit-unassigned] [Bug 72208] [chromium] Fix scaleDelta zoom-out visibility rect bug

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=72208





--- Comment #18 from James Robinson <jamesr at chromium.org>  2011-11-17 12:47:18 PST ---
(In reply to comment #16)
> (In reply to comment #6)
> > OK, I added a similar fix for zoomAnimatorTransform.  I kept them on different codepaths to make it easier to work separately, but zoomAnimatorTransform is now applied the same way.
> > 
> > (Minor: I also removed the option to have a gray background when zoomAnimatorTransform is active.  Now that the clip-rect is no longer buggy, we should never see the glClear color anyway, since it will draw tiles -- checkerboard if necessary -- all over the screen.)
> 
> Correct me if I'm wrong, but doesn't this only work if the set of tiles currently being zoomed is enough to fill the screen? For example, if we zoom out (shrink the page), there may be regions that don't have tiles, and those won't get checkerboards?

The entire viewport has tiles, so unless you allow the user to zoom out such that more than the viewport is visible (which you won't) this isn't an issue.

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