Update third_party/protobuf to protobuf-v3.0.0-beta-3

third_party/protobuf/csharp/src/Google.Protobuf.Test/FieldCodecTest.cs

 #region Copyright notice and license
 // Protocol Buffers - Google's data interchange format
 // Copyright 2015 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
@@ skipping 40 matching lines @@
             new FieldCodecTestData<uint>(FieldCodec.ForUInt32(100), 1234, "UInt32"),
             new FieldCodecTestData<uint>(FieldCodec.ForFixed32(100), 1234, "Fixed32"),
             new FieldCodecTestData<long>(FieldCodec.ForInt64(100), -1000, "Int64"),
             new FieldCodecTestData<long>(FieldCodec.ForSInt64(100), -1000, "SInt64"),
             new FieldCodecTestData<long>(FieldCodec.ForSFixed64(100), -1000, "SFixed64"),
             new FieldCodecTestData<ulong>(FieldCodec.ForUInt64(100), 1234, "UInt64"),
             new FieldCodecTestData<ulong>(FieldCodec.ForFixed64(100), 1234, "Fixed64"),
             new FieldCodecTestData<float>(FieldCodec.ForFloat(100), 1234.5f, "Float"),
             new FieldCodecTestData<double>(FieldCodec.ForDouble(100), 1234567890.5d, "Double"),
             new FieldCodecTestData<ForeignEnum>(
-                FieldCodec.ForEnum(100, t => (int) t, t => (ForeignEnum) t), ForeignEnum.FOREIGN_BAZ, "Enum"),
+                FieldCodec.ForEnum(100, t => (int) t, t => (ForeignEnum) t), ForeignEnum.ForeignBaz, "Enum"),
             new FieldCodecTestData<ForeignMessage>(
                 FieldCodec.ForMessage(100, ForeignMessage.Parser), new ForeignMessage { C = 10 }, "Message"),
         };
 #pragma warning restore 0414
 
         [Test, TestCaseSource("Codecs")]
         public void RoundTripWithTag(ICodecTestData codec)
         {
             codec.TestRoundTripWithTag();
         }
@@ skipping 114 matching lines @@
                 Assert.AreEqual(name.Contains("Fixed"), codec.FixedSize != 0);
             }
 
             public override string ToString()
             {
                 return name;
             }
         }
     }
 }