Zoom any new multicolumn layout. The fonts don't update like they are supposed to. It looks like the styles of the multicolumn sets aren't being properly updated.
Created attachment 229554 [details]
Attachment 229554 [details] did not pass style-queue:
ERROR: Source/WebCore/rendering/RenderBlockFlow.cpp:1873: Boolean expressions that span multiple lines should have their operators on the left side of the line instead of the right side. [whitespace/operators] 
ERROR: Source/WebCore/rendering/RenderBlockFlow.cpp:1873: Multi line control clauses should use braces. [whitespace/braces] 
Total errors found: 2 in 5 files
If any of these errors are false positives, please file a bug against check-webkit-style.
Comment on attachment 229554 [details]
Looks good to me.
Landed in r167429.