[Webkit-unassigned] [Bug 75015] Setting scrollTop / scrollLeft should not cause a layout

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=75015

Lucas Wiener <lucas at wiener.se> changed:

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                 CC|                            |lucas at wiener.se

--- Comment #2 from Lucas Wiener <lucas at wiener.se> ---
I've posted this Stack Overflow question regarding the performance of scrollTop/Left in Safari: http://stackoverflow.com/questions/30218002/element-scrolltop-left-is-really-slow-in-safari-why/30218327#30218327

I assume this is due to the layout being forced for each call to the methods.
Is it possible to look how Blink handles this?
As shown in the Stack Overflow question, Blink executes the test function in ~50 ms while Safari executes it in ~1500 ms.

Kind regards

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