Templatize CFX_{Byte,Wide}StringC

testing/fx_string_testhelpers.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "testing/fx_string_testhelpers.h"
 
 #include <iomanip>
 #include <ios>
 
 namespace {
 
 template <typename T>
 std::ostream& output_string(std::ostream& out, const T& str) {
   out << std::hex << std::setfill('0') << '"';
   // This function is used for FX strings whose length is defined as int.
   for (int i = 0; i < str.GetLength(); ++i) {
     unsigned int c = str.GetAt(i);
     if (c >= 0x20 && c < 0x7F) {
       out << static_cast<char>(c);
-    } else if (sizeof(typename T::value_type) == 1) {
+    } else if (sizeof(typename T::CharType) == 1) {
       out << "\\x" << std::setw(2) << c << std::setw(0);
     } else if (c < 0x10000) {
       out << "\\u" << std::setw(4) << c << std::setw(0);
     } else {
       out << "<invalid>";
     }
   }
   out << '"' << std::dec << std::setfill(' ');
   return out;
 }
 
 }  // namespace
 
 std::ostream& operator<<(std::ostream& out, const CFX_ByteStringC& str) {
   return output_string(out, str);
 }
 
 std::ostream& operator<<(std::ostream& out, const CFX_ByteString& str) {
   return output_string(out, str);
 }
 
 std::ostream& operator<<(std::ostream& out, const CFX_WideStringC& str) {
   return output_string(out, str);
 }
 
 std::ostream& operator<<(std::ostream& out, const CFX_WideString& str) {
   return output_string(out, str);
 }