Fixed issue where the parse/serialize styles unit test was failing on WebKit.
Fixed issue where the parse/serialize styles unit test was failing on WebKit.

FernCreek/tinymce,ETSI-CTI/TinySpecMCE,mplank/tinymce,MediehusetTek/tinymce,1099511627776/tinymce,Shopify/tinymce,Kindling/tinymce,sachgits/tinymce,blakewallan/tinymce,fillabs/TinySpecMCE,1099511627776/tinymce,danielpunkass/tinymce,adaptiffdesigns/tinymce,gencer/tinymce,widgetfactory/tinymce,gencer/tinymce,ice8lue/tinymce,rednose-public/tinymce,danchr/tinymce,fhchina/tinymce,FernCreek/tinymce,leofeyer/tinymce,TeamupCom/tinymce,sjbufton/tinymce,toxalot/tinymce,collective/tinymce,danchr/tinymce,henrythewasp/tinymce,shilpi230/tinymce,simachewh/tinymce,TeamupCom/tinymce,Zimbra/tinymce,fhchina/tinymce,mplank/tinymce,MediehusetTek/tinymce,VioletLife/tinymce,shilpi230/tinymce,gabixdev/tinymce,widgetfactory/tinymce,aduth/tinymce,cclaerhout/tinymce,jtark/tinymce,sachgits/tinymce,ikuchmin/tinymce,Razzwan/tinymce,ikuchmin/tinymce,tinymce/tinymce,jashua212/tinymce,support-dot-com/tinymce,bsuh/tinymce,kencheung/tinymce,dziemian007/tinymce,jashua212/tinymce,toxalot/tinymce,Zimbra/tinymce,howanghk/tinymce,ChristophKaser/tinymce,kencheung/tinymce,collective/tinymce,danielpunkass/tinymce,endjin/tinymce,cclaerhout/tinymce,tinymce/tinymce,fillabs/TinySpecMCE,rednose-public/tinymce,pmpl-5/tinymce,VioletLife/tinymce,enfold/tinymce,nbcp/tinymce,Kindling/tinymce,nbcp/tinymce,nikolas/tinymce,rxl194/tinymce,rbecheras/tinymce,howanghk/tinymce,fashionsun/tinymce,tinymce/tinymce,jtark/tinymce,henrythewasp/tinymce,enfold/tinymce,adaptiffdesigns/tinymce,Razzwan/tinymce,ETSI-CTI/TinySpecMCE,leofeyer/tinymce,M4R7iNP/tinymce,bsuh/tinymce,danielpunkass/tinymce,M4R7iNP/tinymce,ice8lue/tinymce,dziemian007/tinymce,pmpl-5/tinymce,sjbufton/tinymce,gabixdev/tinymce,FernCreek/tinymce,aduth/tinymce,endjin/tinymce,ChristophKaser/tinymce,support-dot-com/tinymce,rbecheras/tinymce,fashionsun/tinymce,nikolas/tinymce,simachewh/tinymce,blakewallan/tinymce,rxl194/tinymce