When the web page specifies -webkit-tap-highlight-color:rgba(0,0,0,0) we should disable the tap highlight. In fact any color with alpha == 0.
Created attachment 155740 [details] Patch
Comment on attachment 155740 [details] Patch Clearing flags on attachment: 155740 Committed r124331: <http://trac.webkit.org/changeset/124331>
All reviewed patches have been landed. Closing bug.