this affects three forms that option elements take multi-select listboxes popup buttons (select controls) and the menu items that the pop up button turns into
Created attachment 49544 [details] Patch
Attachment 49544 [details] did not build on chromium: Build output: http://webkit-commit-queue.appspot.com/results/309966
Created attachment 49548 [details] Patch
upload to fix chromium
http://trac.webkit.org/changeset/55425