Revert https://codereview.chromium.org/1291903002 (protobuf roll).

third_party/protobuf/csharp/src/Google.Protobuf/Reflection/EnumDescriptor.cs

Index: third_party/protobuf/csharp/src/Google.Protobuf/Reflection/EnumDescriptor.cs
diff --git a/third_party/protobuf/csharp/src/Google.Protobuf/Reflection/EnumDescriptor.cs b/third_party/protobuf/csharp/src/Google.Protobuf/Reflection/EnumDescriptor.cs
deleted file mode 100644
index 285f26f38aaef827f56bdee8707511a95d458112..0000000000000000000000000000000000000000
--- a/third_party/protobuf/csharp/src/Google.Protobuf/Reflection/EnumDescriptor.cs
+++ /dev/null
@@ -1,116 +0,0 @@
-#region Copyright notice and license
-// 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.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-#endregion
-
-using System;
-using System.Collections.Generic;
-
-namespace Google.Protobuf.Reflection
-{
-    /// <summary>
-    /// Descriptor for an enum type in a .proto file.
-    /// </summary>
-    public sealed class EnumDescriptor : DescriptorBase
-    {
-        private readonly EnumDescriptorProto proto;
-        private readonly MessageDescriptor containingType;
-        private readonly IList<EnumValueDescriptor> values;
-        private readonly Type generatedType;
-
-        internal EnumDescriptor(EnumDescriptorProto proto, FileDescriptor file, MessageDescriptor parent, int index, Type generatedType)
-            : base(file, file.ComputeFullName(parent, proto.Name), index)
-        {
-            this.proto = proto;
-            this.generatedType = generatedType;
-            containingType = parent;
-
-            if (proto.Value.Count == 0)
-            {
-                // We cannot allow enums with no values because this would mean there
-                // would be no valid default value for fields of this type.
-                throw new DescriptorValidationException(this, "Enums must contain at least one value.");
-            }
-
-            values = DescriptorUtil.ConvertAndMakeReadOnly(proto.Value,
-                                                           (value, i) => new EnumValueDescriptor(value, file, this, i));
-
-            File.DescriptorPool.AddSymbol(this);
-        }
-
-        internal EnumDescriptorProto Proto { get { return proto; } }
-
-        /// <summary>
-        /// The brief name of the descriptor's target.
-        /// </summary>
-        public override string Name { get { return proto.Name; } }
-
-        /// <summary>
-        /// The generated type for this enum, or <c>null</c> if the descriptor does not represent a generated type.
-        /// </summary>
-        public Type GeneratedType { get { return generatedType; } }
-
-        /// <value>
-        /// If this is a nested type, get the outer descriptor, otherwise null.
-        /// </value>
-        public MessageDescriptor ContainingType
-        {
-            get { return containingType; }
-        }
-
-        /// <value>
-        /// An unmodifiable list of defined value descriptors for this enum.
-        /// </value>
-        public IList<EnumValueDescriptor> Values
-        {
-            get { return values; }
-        }
-
-        /// <summary>
-        /// Finds an enum value by number. If multiple enum values have the
-        /// same number, this returns the first defined value with that number.
-        /// If there is no value for the given number, this returns <c>null</c>.
-        /// </summary>
-        public EnumValueDescriptor FindValueByNumber(int number)
-        {
-            return File.DescriptorPool.FindEnumValueByNumber(this, number);
-        }
-
-        /// <summary>
-        /// Finds an enum value by name.
-        /// </summary>
-        /// <param name="name">The unqualified name of the value (e.g. "FOO").</param>
-        /// <returns>The value's descriptor, or null if not found.</returns>
-        public EnumValueDescriptor FindValueByName(string name)
-        {
-            return File.DescriptorPool.FindSymbol<EnumValueDescriptor>(FullName + "." + name);
-        }
-    }
-}