Adds option for JSON reader to allow invalid utf characters

base/json/json_parser.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BASE_JSON_JSON_PARSER_H_
 #define BASE_JSON_JSON_PARSER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 239 matching lines @@
   int error_column_;
 
   friend class JSONParserTest;
   FRIEND_TEST_ALL_PREFIXES(JSONParserTest, NextChar);
   FRIEND_TEST_ALL_PREFIXES(JSONParserTest, ConsumeDictionary);
   FRIEND_TEST_ALL_PREFIXES(JSONParserTest, ConsumeList);
   FRIEND_TEST_ALL_PREFIXES(JSONParserTest, ConsumeString);
   FRIEND_TEST_ALL_PREFIXES(JSONParserTest, ConsumeLiterals);
   FRIEND_TEST_ALL_PREFIXES(JSONParserTest, ConsumeNumbers);
   FRIEND_TEST_ALL_PREFIXES(JSONParserTest, ErrorMessages);
+  FRIEND_TEST_ALL_PREFIXES(JSONParserTest, ReplaceInvalidCharacters);
 
   DISALLOW_COPY_AND_ASSIGN(JSONParser);
 };
 
+// Used when decoding and an invalid utf-8 sequence is encountered.
+BASE_EXPORT extern const char kUnicodeReplacementString[];
+
 }  // namespace internal
 }  // namespace base
 
 #endif  // BASE_JSON_JSON_PARSER_H_