third_party/protobuf: Update to HEAD (83d681ee2c)

third_party/protobuf/src/google/protobuf/util/internal/json_stream_parser.h

Index: third_party/protobuf/src/google/protobuf/util/internal/json_stream_parser.h
diff --git a/third_party/protobuf/src/google/protobuf/util/internal/json_stream_parser.h b/third_party/protobuf/src/google/protobuf/util/internal/json_stream_parser.h
index 0278c28fbc6abf66e248108cf4227b56e05da96a..6b9d46ee2257936677b5a0231e70116723cfd3b9 100644
--- a/third_party/protobuf/src/google/protobuf/util/internal/json_stream_parser.h
+++ b/third_party/protobuf/src/google/protobuf/util/internal/json_stream_parser.h
@@ -179,6 +179,10 @@ class LIBPROTOBUF_EXPORT JsonStreamParser {
   util::Status ParseTrue();
   util::Status ParseFalse();
   util::Status ParseNull();
+  util::Status ParseEmptyNull();
+
+  // Whether an empty-null is allowed in the current state.
+  bool IsEmptyNullAllowed(TokenType type);
 
   // Report a failure as a util::Status.
   util::Status ReportFailure(StringPiece message);
@@ -247,6 +251,13 @@ class LIBPROTOBUF_EXPORT JsonStreamParser {
   // Whether to allow non UTF-8 encoded input and replace invalid code points.
   bool coerce_to_utf8_;
 
+  // Whether allows empty string represented null array value or object entry
+  // value.
+  bool allow_empty_null_;
+
+  // Whether allows out-of-range floating point numbers or reject them.
+  bool loose_float_number_conversion_;
+
   GOOGLE_DISALLOW_IMPLICIT_CONSTRUCTORS(JsonStreamParser);
 };