Adds option for JSON reader to allow invalid utf characters

base/json/json_reader.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.
 //
 // A JSON parser.  Converts strings of JSON into a Value object (see
 // base/values.h).
 // http://www.ietf.org/rfc/rfc4627.txt?number=4627
 //
 // Known limitations/deviations from the RFC:
 // - Only knows how to parse ints within the range of a signed 32 bit int and
@@ skipping 37 matching lines @@
   JSON_PARSE_RFC = 0,
 
   // Allows commas to exist after the last element in structures.
   JSON_ALLOW_TRAILING_COMMAS = 1 << 0,
 
   // The parser can perform optimizations by placing hidden data in the root of
   // the JSON object, which speeds up certain operations on children. However,
   // if the child is Remove()d from root, it would result in use-after-free
   // unless it is DeepCopy()ed or this option is used.
   JSON_DETACHABLE_CHILDREN = 1 << 1,
+
+  // If set the parser replaces invalid characters with the Unicode replacement
+  // character (U+FFFD). If not set, invalid characters trigger a hard error and
+  // parsing fails.
+  JSON_REPLACE_INVALID_CHARACTERS = 1 << 2,
 };
 
 class BASE_EXPORT JSONReader {
  public:
   // Error codes during parsing.
   enum JsonParseError {
     JSON_NO_ERROR = 0,
     JSON_INVALID_ESCAPE,
     JSON_SYNTAX_ERROR,
     JSON_UNEXPECTED_TOKEN,
@@ skipping 59 matching lines @@
   // numbers if appropriate.
   std::string GetErrorMessage() const;
 
  private:
   std::unique_ptr<internal::JSONParser> parser_;
 };
 
 }  // namespace base
 
 #endif  // BASE_JSON_JSON_READER_H_