void RadioButtonGroup::updateCheckedState(HTMLInputElement* button) {
DCHECK_EQ(button->type(), InputTypeNames::radio);
DCHECK(m_members.contains(button));
bool wasValid = isValid();
if (button->checked()) {
setCheckedButton(button);
} else {
if (m_checkedButton == button)
m_checkedButton = nullptr;
}
if (wasValid != isValid())
setNeedsValidityCheckForAllButtons();
for (auto& member : m_members) {
HTMLInputElement* const inputElement = member.key;
inputElement->pseudoStateChanged(CSSSelector::PseudoIndeterminate);
}
}
bool RadioButtonGroup::contains(HTMLInputElement* button) const {
return m_members.contains(button);
}