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

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

Index: third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_map_field.cc
diff --git a/third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_map_field.cc b/third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_map_field.cc
deleted file mode 100644
index f84ad6f7ac788ce1bf8901ad3b10be5ebf413230..0000000000000000000000000000000000000000
--- a/third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_map_field.cc
+++ /dev/null
@@ -1,137 +0,0 @@
-// 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.
-
-#include <sstream>
-
-#include <google/protobuf/compiler/code_generator.h>
-#include <google/protobuf/compiler/plugin.h>
-#include <google/protobuf/descriptor.h>
-#include <google/protobuf/descriptor.pb.h>
-#include <google/protobuf/io/printer.h>
-#include <google/protobuf/io/zero_copy_stream.h>
-#include <google/protobuf/stubs/strutil.h>
-
-#include <google/protobuf/compiler/csharp/csharp_helpers.h>
-#include <google/protobuf/compiler/csharp/csharp_map_field.h>
-
-namespace google {
-namespace protobuf {
-namespace compiler {
-namespace csharp {
-
-MapFieldGenerator::MapFieldGenerator(const FieldDescriptor* descriptor,
-                                             int fieldOrdinal)
-    : FieldGeneratorBase(descriptor, fieldOrdinal) {
-}
-
-MapFieldGenerator::~MapFieldGenerator() {
-}
-
-void MapFieldGenerator::GenerateMembers(io::Printer* printer) {   
-  const FieldDescriptor* key_descriptor =
-      descriptor_->message_type()->FindFieldByName("key");
-  const FieldDescriptor* value_descriptor =
-      descriptor_->message_type()->FindFieldByName("value");
-  variables_["key_type_name"] = type_name(key_descriptor);
-  variables_["value_type_name"] = type_name(value_descriptor);
-  variables_["true_for_wrappers"] = IsWrapperType(value_descriptor) ? "true" : "";
-  scoped_ptr<FieldGeneratorBase> key_generator(CreateFieldGenerator(key_descriptor, 1));  
-  scoped_ptr<FieldGeneratorBase> value_generator(CreateFieldGenerator(value_descriptor, 2));
-
-  printer->Print(
-    variables_,
-    "private static readonly pbc::MapField<$key_type_name$, $value_type_name$>.Codec _map_$name$_codec\n"
-    "    = new pbc::MapField<$key_type_name$, $value_type_name$>.Codec(");
-  key_generator->GenerateCodecCode(printer);
-  printer->Print(", ");
-  value_generator->GenerateCodecCode(printer);
-  printer->Print(
-    variables_,
-    ", $tag$);\n"
-    "private readonly pbc::MapField<$key_type_name$, $value_type_name$> $name$_ = new pbc::MapField<$key_type_name$, $value_type_name$>($true_for_wrappers$);\n");
-  AddDeprecatedFlag(printer);
-  printer->Print(
-    variables_,
-    "$access_level$ pbc::MapField<$key_type_name$, $value_type_name$> $property_name$ {\n"
-    "  get { return $name$_; }\n"
-    "}\n");
-}
-
-void MapFieldGenerator::GenerateMergingCode(io::Printer* printer) {
-  printer->Print(
-      variables_,
-      "$name$_.Add(other.$name$_);\n");
-}
-
-void MapFieldGenerator::GenerateParsingCode(io::Printer* printer) {
-  printer->Print(
-    variables_,
-    "$name$_.AddEntriesFrom(input, _map_$name$_codec);\n");
-}
-
-void MapFieldGenerator::GenerateSerializationCode(io::Printer* printer) {
-  printer->Print(
-    variables_,
-    "$name$_.WriteTo(output, _map_$name$_codec);\n");
-}
-
-void MapFieldGenerator::GenerateSerializedSizeCode(io::Printer* printer) {
-  printer->Print(
-    variables_,
-    "size += $name$_.CalculateSize(_map_$name$_codec);\n");
-}
-
-void MapFieldGenerator::WriteHash(io::Printer* printer) {
-  printer->Print(
-    variables_,
-    "hash ^= $property_name$.GetHashCode();\n");
-}
-void MapFieldGenerator::WriteEquals(io::Printer* printer) {
-  printer->Print(
-    variables_,
-    "if (!$property_name$.Equals(other.$property_name$)) return false;\n");
-}
-
-void MapFieldGenerator::WriteToString(io::Printer* printer) {
-    // TODO: If we ever actually use ToString, we'll need to impleme this...
-}
-
-void MapFieldGenerator::GenerateCloningCode(io::Printer* printer) {
-  printer->Print(variables_,
-    "$name$_ = other.$name$_.Clone();\n");
-}
-
-void MapFieldGenerator::GenerateFreezingCode(io::Printer* printer) {
-}
-
-}  // namespace csharp
-}  // namespace compiler
-}  // namespace protobuf
-}  // namespace google