isValidKindKeyword 2302 Source/core/html/HTMLMediaElement.cpp     if (!TextTrack::isValidKindKeyword(kind)) {
isValidKindKeyword   66 Source/core/html/track/TextTrack.h     static bool isValidKindKeyword(const AtomicString&);
isValidKindKeyword  122 Source/core/html/track/TextTrack.h     virtual bool isValidKind(const AtomicString& kind) const OVERRIDE { return isValidKindKeyword(kind); }