third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_options.h

 // 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 27 matching lines @@
 namespace protobuf {
 namespace compiler {
 namespace csharp {
 
 // Generator options (used by csharp_generator.cc):
 struct Options {
   Options() :
       file_extension(".cs"),
       base_namespace(""),
       base_namespace_specified(false),
-      internal_access(false),
-      legacy_enum_values(false) {
+      internal_access(false) {
   }
   // Extension of the generated file. Defaults to ".cs"
   string file_extension;
   // Base namespace to use to create directory hierarchy. Defaults to "".
   // This option allows the simple creation of a conventional C# file layout,
   // where directories are created relative to a project-specific base
   // namespace. For example, in a project with a base namespace of PetShop, a
   // proto of user.proto with a C# namespace of PetShop.Model.Shared would
   // generate Model/Shared/User.cs underneath the specified --csharp_out
   // directory.
   //
   // If no base namespace is specified, all files are generated in the
   // --csharp_out directory, with no subdirectories created automatically.
   string base_namespace;
   // Whether the base namespace has been explicitly specified by the user.
   // This is required as the base namespace can be explicitly set to the empty
   // string, meaning "create a full directory hierarchy, starting from the first
   // segment of the namespace."
   bool base_namespace_specified;
   // Whether the generated classes should have accessibility level of "internal".
   // Defaults to false that generates "public" classes.
   bool internal_access;
-  // By default, C# codegen now uses PascalCased enum values names, after
-  // removing the enum type name as a prefix (if it *is* a prefix of the value).
-  // Setting this option reverts to the previous behavior of just copying the
-  // value name specified in the .proto file, allowing gradual migration.
-  // This option will be removed before final release.
-  bool legacy_enum_values;
 };
 
 }  // namespace csharp
 }  // namespace compiler
 }  // namespace protobuf
 
 
 }  // namespace google
 #endif  // GOOGLE_PROTOBUF_COMPILER_CSHARP_OPTIONS_H__