INVALID_BIT        39 url/url_canon_path.cc   INVALID = INVALID_BIT | SPECIAL,
INVALID_BIT       253 url/url_canon_path.cc             } else if (unescaped_flags & INVALID_BIT) {
INVALID_BIT       278 url/url_canon_path.cc         } else if (flags & INVALID_BIT) {