PNG_sBIT           52 third_party/libpng/png.c PNG_sBIT;
PNG_sBIT          186 third_party/libpng/pngpread.c       PNG_CONST PNG_sBIT;
PNG_sBIT          417 third_party/libpng/pngread.c       PNG_CONST PNG_sBIT;
PNG_sBIT          995 third_party/libpng/pngread.c       PNG_CONST PNG_sBIT;
PNG_sBIT          934 third_party/libpng/pngwutil.c    PNG_sBIT;