[Webkit-unassigned] [Bug 119479] Inserting a JS generated keyframe animation shouldn't trigger a whole document style recalc

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=119479





--- Comment #4 from Andreas Kling <akling at apple.com>  2013-10-02 14:00:34 PST ---
(From update of attachment 213194)
View in context: https://bugs.webkit.org/attachment.cgi?id=213194&action=review

> Source/WebCore/css/CSSStyleSheet.cpp:317
> +        if (owner)
> +            owner->ensureStyleResolver().addKeyframeStyle(static_cast<StyleRuleKeyframes*>(rule.get()));

If there is no StyleResolver here, I don't think we need to create one.
Use Document::styleResolverIfExists() instead, the keyframes rule will get picked up during the inevitable StyleResolver construction.

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