[Webkit-unassigned] [Bug 71354] Resizing Cappuccino is very laggy on WebKit since Safari 5.1

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=71354


Anders Carlsson <andersca at apple.com> changed:

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 Attachment #118921|review?                     |review+
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--- Comment #8 from Anders Carlsson <andersca at apple.com>  2011-12-12 17:52:35 PST ---
(From update of attachment 118921)
View in context: https://bugs.webkit.org/attachment.cgi?id=118921&action=review

>>> Source/WebKit2/WebProcess/WebCoreSupport/WebChromeClient.cpp:110
>>> +#else
>> 
>> Will a potentially stale value be used here as a result of this change? I'm not even sure if any WindowAndViewFramesChanged will be delivered until after the end of resizing.
> 
> What do you mean by the end of resizing? When you let go of the window edge? On my (Lion) system, there's a steady stream of WindowAndViewFramesChanged messages during resize. And this change does indeed make <http://githubissues.heroku.com/> significantly less laggy.

I think it's absolutely fine to return a stale value here - the window between resizing and the size being updated is small enough that it shouldn't matter in practice. I think Chrome does something similar.

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