Unreviewed. Fix test after r146938. Since CSS Exclusions is still an experimental feature, shape-inside-on-nested-container-with-unresolved-height.html
test should enable CSS Exclusions for the testrunners first.  

* fast/exclusions/shape-inside/shape-inside-on-nested-container-with-unresolved-height.html: Set CSSExclisions enabled for DRT/WTR.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@146943 268f45cc-cd09-0410-ab3c-d52691b4dbfc