Merge 118891 - REGRESSION(r111497): The "option" element doesn't match CSS pseudo class :enabled
Reviewed by Kent Tamura.
This patch added checking of "option" element for CSS pseudo class :enabled as same as
:disabled to selector checker. Before r111497, it was done by using isFormControlElement.
After that revision, HTMLOptionElement was no longer derived from HTMLFormControlElement.
(WebCore::SelectorChecker::checkOneSelector): Checking element is option element as same
as PseudoDisabled in PseudoEnabled case.
* platform/chromium-linux/fast/forms/select/optgroup-rendering-expected.png: Updated. Text color of option element is bule from CSS pseudo class option:enabled.
* platform/chromium/test_expectations.txt: Update comment.