TTCHeader 51 third_party/harfbuzz-ng/src/hb-open-file-private.hh struct TTCHeader; TTCHeader 128 third_party/harfbuzz-ng/src/hb-open-file-private.hh friend struct TTCHeader; TTCHeader 251 third_party/harfbuzz-ng/src/hb-open-file-private.hh TTCHeader ttcHeader;