Regressions in flexbox layout caused by the flexing optimizations.
https://bugs.webkit.org/show_bug.cgi?id=116058
<rdar://problem/13863647>
        
Reviewed by Beth Dakin.

Roll out the flex-related changes from r149597 so that the layout
algorithm goes back to the way it was. Leave the repainting optimizations
in place though.

* rendering/RenderDeprecatedFlexibleBox.cpp:
(WebCore::gatherFlexChildrenInfo):
(WebCore::RenderDeprecatedFlexibleBox::layoutHorizontalBox):
(WebCore::RenderDeprecatedFlexibleBox::layoutVerticalBox):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@150038 268f45cc-cd09-0410-ab3c-d52691b4dbfc