Reverts third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_wrapper_field.cc

 // 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 55 matching lines @@
 void WrapperFieldGenerator::GenerateMembers(io::Printer* printer) {
   printer->Print(
         variables_,
         "private static readonly pb::FieldCodec<$type_name$> _single_$name$_codec = ");
   GenerateCodecCode(printer);
   printer->Print(
     variables_,
     ";\n"
     "private $type_name$ $name$_;\n");
   WritePropertyDocComment(printer, descriptor_);
-  AddPublicMemberAttributes(printer);
+  AddDeprecatedFlag(printer);
   printer->Print(
     variables_,
     "$access_level$ $type_name$ $property_name$ {\n"
     "  get { return $name$_; }\n"
     "  set {\n"
     "    $name$_ = value;\n"
     "  }\n"
     "}\n");
 }
 
@@ skipping 75 matching lines @@
 }
 
 void WrapperOneofFieldGenerator::GenerateMembers(io::Printer* printer) {
   // Note: deliberately _oneof_$name$_codec, not _$oneof_name$_codec... we have one codec per field.
   printer->Print(
         variables_,
         "private static readonly pb::FieldCodec<$type_name$> _oneof_$name$_codec = ");
   GenerateCodecCode(printer);
   printer->Print(";\n");
   WritePropertyDocComment(printer, descriptor_);
-  AddPublicMemberAttributes(printer);
+  AddDeprecatedFlag(printer);
   printer->Print(
     variables_,
     "$access_level$ $type_name$ $property_name$ {\n"
     "  get { return $has_property_check$ ? ($type_name$) $oneof_name$_ : ($type_name$) null; }\n"
     "  set {\n"
     "    $oneof_name$_ = value;\n"
     "    $oneof_name$Case_ = value == null ? $oneof_property_name$OneofCase.None : $oneof_property_name$OneofCase.$property_name$;\n"
     "  }\n"
     "}\n");
 }
@@ skipping 19 matching lines @@
     variables_,
     "if ($has_property_check$) {\n"
     "  size += _oneof_$name$_codec.CalculateSizeWithTag($property_name$);\n"
     "}\n");
 }
 
 }  // namespace csharp
 }  // namespace compiler
 }  // namespace protobuf
 }  // namespace google