third_party/protobuf: Update to HEAD (83d681ee2c)

third_party/protobuf/js/testbinary.proto

 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
 // https://developers.google.com/protocol-buffers/
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
@@ skipping 165 matching lines @@
   repeated  fixed64 extend_packed_repeated_fixed64  = 68 [packed=true];
   repeated sfixed32 extend_packed_repeated_sfixed32 = 69 [packed=true];
   repeated sfixed64 extend_packed_repeated_sfixed64 = 70 [packed=true];
   repeated    float extend_packed_repeated_float    = 71 [packed=true];
   repeated   double extend_packed_repeated_double   = 72 [packed=true];
   repeated     bool extend_packed_repeated_bool     = 73 [packed=true];
   repeated ForeignEnum extend_packed_repeated_foreign_enum    = 82
       [packed=true];
 
 }
+
+message TestMapFields {
+  map<string, string> map_string_string = 1;
+  map<string, int32> map_string_int32 = 2;
+  map<string, int64> map_string_int64 = 3;
+  map<string, bool> map_string_bool = 4;
+  map<string, double> map_string_double = 5;
+  map<string, MapValueEnum> map_string_enum = 6;
+  map<string, MapValueMessage> map_string_msg = 7;
+
+  map<int32, string> map_int32_string = 8;
+  map<int64, string> map_int64_string = 9;
+  map<bool, string> map_bool_string = 10;
+
+  optional TestMapFields test_map_fields = 11;
+  map<string, TestMapFields> map_string_testmapfields = 12;
+}
+
+enum MapValueEnum {
+  MAP_VALUE_FOO = 0;
+  MAP_VALUE_BAR = 1;
+  MAP_VALUE_BAZ = 2;
+}
+
+message MapValueMessage {
+  optional int32 foo = 1;
+}