34 using StringHelper = base::StringHelper;  typedef
221             std::u16string sStr = StringHelper::Utf16ToU16String(&cc, 1);  in Encode()
264             std::string oct = StringHelper::Utf32ToString(vv);  in Encode()
274             resStr.append(StringHelper::StringToU16string(tmpStr.str()));  in Encode()
287     size_t idxf = StringHelper::FindFromU16ToUpper(hexString, &front);  in GetValueFromTwoHex()
288     size_t idxb = StringHelper::FindFromU16ToUpper(hexString, &behind);  in GetValueFromTwoHex()
334             sStr = StringHelper::Utf16ToU16String(&cc, 1);  in Decode()
357                     sStr = StringHelper::Utf8ToU16String(&bb, 1);  in Decode()
361                     sStr = StringHelper::StringToU16string(  in Decode()
445                 uint32_t vv = StringHelper::Utf8ToU32String(oct);  in Decode()
448                         sStr = StringHelper::Utf16ToU16String(reinterpret_cast<uint16_t *>(&vv), 1);  in Decode()
452                         sStr = StringHelper::StringToU16string(  in Decode()
460                     sStr = StringHelper::Append(StringHelper::Utf16ToU16String(&hv, 1),  in Decode()
461                                                 StringHelper::Utf16ToU16String(&lv, 1));  in Decode()