kFbUnknown        261 third_party/re2/re2/dfa.cc         firstbyte(kFbUnknown),
kFbUnknown        287 third_party/re2/re2/dfa.cc     StartInfo() : start(NULL), firstbyte(kFbUnknown) { }
kFbUnknown       1172 third_party/re2/re2/dfa.cc     start_[i].firstbyte = kFbUnknown;
kFbUnknown       1687 third_party/re2/re2/dfa.cc   if (ANNOTATE_UNPROTECTED_READ(info->firstbyte) != kFbUnknown) {
kFbUnknown       1693 third_party/re2/re2/dfa.cc   if (info->firstbyte != kFbUnknown) {