221   return std::string(it_begin.it_, it_end.it_ - it_begin.it_);  in UTF8Substring()
233     result.repr_.Copy(it_begin.it_, it_end.it_ - it_begin.it_);  in Substring()
237     result.repr_.PointTo(it_begin.it_, it_end.it_ - it_begin.it_);  in Substring()
250 UnicodeText::const_iterator::const_iterator() : it_(0) {}  in const_iterator()
254   if (&other != this) it_ = other.it_;  in operator =()
268   return lhs.it_ < rhs.it_;  in operator <()
278   unsigned char byte1 = static_cast<unsigned char>(it_[0]);  in operator *()
281   unsigned char byte2 = static_cast<unsigned char>(it_[1]);  in operator *()
284   unsigned char byte3 = static_cast<unsigned char>(it_[2]);  in operator *()
289   unsigned char byte4 = static_cast<unsigned char>(it_[3]);  in operator *()
295   it_ += GetNumBytesForNonZeroUTF8Char(it_);  in operator ++()
300   while (IsTrailByte(*--it_)) {  in operator --()