PseudoFirstLetter  168 Source/core/css/CSSSelector.cpp     case PseudoFirstLetter:
PseudoFirstLetter  298 Source/core/css/CSSSelector.cpp {"first-letter",                  CSSSelector::PseudoFirstLetter},
PseudoFirstLetter  446 Source/core/css/CSSSelector.cpp     case PseudoFirstLetter: