m_popupIsVisible is still true although popup is disappered if we didn't select any item. So, we need to call RenderMenuList::popupDidHide() in WebPopupMenu::hide().
Created attachment 238113 [details] Patch
*** This bug has been marked as a duplicate of bug 135454 ***
Comment on attachment 238113 [details] Patch Clearing r? to disappear in peding review queue.