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

third_party/protobuf/csharp/src/Google.Protobuf/MessageParser.cs

Index: third_party/protobuf/csharp/src/Google.Protobuf/MessageParser.cs
diff --git a/third_party/protobuf/csharp/src/Google.Protobuf/MessageParser.cs b/third_party/protobuf/csharp/src/Google.Protobuf/MessageParser.cs
deleted file mode 100644
index 6a6f10174947891263a10559f72354231cbf9c71..0000000000000000000000000000000000000000
--- a/third_party/protobuf/csharp/src/Google.Protobuf/MessageParser.cs
+++ /dev/null
@@ -1,146 +0,0 @@
-#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
-// 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.IO;
-
-namespace Google.Protobuf
-{
-    /// <summary>
-    /// A parser for a specific message type.
-    /// </summary>
-    /// <remarks>
-    /// <p>
-    /// This delegates most behavior to the
-    /// <see cref="IMessage.MergeFrom"/> implementation within the original type, but
-    /// provides convenient overloads to parse from a variety of sources.
-    /// </p>
-    /// <p>
-    /// Most applications will never need to create their own instances of this type;
-    /// instead, use the static <c>Parser</c> property of a generated message type to obtain a
-    /// parser for that type.
-    /// </p>
-    /// </remarks>
-    /// <typeparam name="T">The type of message to be parsed.</typeparam>
-    public sealed class MessageParser<T> where T : IMessage<T>
-    {
-        private readonly Func<T> factory; 
-
-        /// <summary>
-        /// Creates a new parser.
-        /// </summary>
-        /// <remarks>
-        /// The factory method is effectively an optimization over using a generic constraint
-        /// to require a parameterless constructor: delegates are significantly faster to execute.
-        /// </remarks>
-        /// <param name="factory">Function to invoke when a new, empty message is required.</param>
-        public MessageParser(Func<T> factory)
-        {
-            this.factory = factory;
-        }
-
-        /// <summary>
-        /// Creates a template instance ready for population.
-        /// </summary>
-        /// <returns>An empty message.</returns>
-        internal T CreateTemplate()
-        {
-            return factory();
-        }
-
-        /// <summary>
-        /// Parses a message from a byte array.
-        /// </summary>
-        /// <param name="data">The byte array containing the message. Must not be null.</param>
-        /// <returns>The newly parsed message.</returns>
-        public T ParseFrom(byte[] data)
-        {
-            Preconditions.CheckNotNull(data, "data");
-            T message = factory();
-            message.MergeFrom(data);
-            return message;
-        }
-
-        /// <summary>
-        /// Parses a message from the given byte string.
-        /// </summary>
-        /// <param name="data">The data to parse.</param>
-        /// <returns>The parsed message.</returns>
-        public T ParseFrom(ByteString data)
-        {
-            Preconditions.CheckNotNull(data, "data");
-            T message = factory();
-            message.MergeFrom(data);
-            return message;
-        }
-
-        /// <summary>
-        /// Parses a message from the given stream.
-        /// </summary>
-        /// <param name="input">The stream to parse.</param>
-        /// <returns>The parsed message.</returns>
-        public T ParseFrom(Stream input)
-        {
-            T message = factory();
-            message.MergeFrom(input);
-            return message;
-        }
-
-        /// <summary>
-        /// Parses a length-delimited message from the given stream.
-        /// </summary>
-        /// <remarks>
-        /// The stream is expected to contain a length and then the data. Only the amount of data
-        /// specified by the length will be consumed.
-        /// </remarks>
-        /// <param name="input">The stream to parse.</param>
-        /// <returns>The parsed message.</returns>
-        public T ParseDelimitedFrom(Stream input)
-        {
-            T message = factory();
-            message.MergeDelimitedFrom(input);
-            return message;
-        }
-
-        /// <summary>
-        /// Parses a message from the given coded input stream.
-        /// </summary>
-        /// <param name="input">The stream to parse.</param>
-        /// <returns>The parsed message.</returns>
-        public T ParseFrom(CodedInputStream input)
-        {
-            T message = factory();
-            message.MergeFrom(input);
-            return message;
-        }
-    }
-}