Utf8SafeCEscape   280 third_party/protobuf/src/google/protobuf/stubs/strutil.h LIBPROTOBUF_EXPORT string Utf8SafeCEscape(const string& src);
Utf8SafeCEscape  1343 third_party/protobuf/src/google/protobuf/text_format.cc           generator.Print(strings::Utf8SafeCEscape(value));