https://bugs.webkit.org/show_bug.cgi?id=105579

Reviewed by Tony Chang.

Source/WebCore: 

Add isfinite to childSize calculation in RenderFlexibleBox::
resolveFlexibleLengths to avoid overflow.

Covered by css3/flexbox/flex-algorithm.html.

* rendering/RenderFlexibleBox.cpp:
(WebCore::RenderFlexibleBox::resolveFlexibleLengths):
Check if value is finite before adding to childSize.

LayoutTests: 

Update expectations for element with very large flex grow value.

* css3/flexbox/flex-algorithm.html:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@138312 268f45cc-cd09-0410-ab3c-d52691b4dbfc