Update //third_party/protobuf to version 3.

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

 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
-// http://code.google.com/p/protobuf/
+// 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.
 
-// Author: kenton@google.com (Kenton Varda)
-//  Based on original Protocol Buffers design by
-//  Sanjay Ghemawat, Jeff Dean, and others.
+#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/stubs/common.h>
-#include <google/protobuf/stubs/strutil.h>
+#include <google/protobuf/compiler/csharp/csharp_doc_comment.h>
+#include <google/protobuf/compiler/csharp/csharp_enum.h>
+#include <google/protobuf/compiler/csharp/csharp_helpers.h>
+
+using google::protobuf::internal::scoped_ptr;
 
 namespace google {
 namespace protobuf {
 namespace compiler {
+namespace csharp {
 
-CodeGenerator::~CodeGenerator() {}
-GeneratorContext::~GeneratorContext() {}
-
-io::ZeroCopyOutputStream* GeneratorContext::OpenForInsert(
-    const string& filename, const string& insertion_point) {
-  GOOGLE_LOG(FATAL) << "This GeneratorContext does not support insertion.";
-  return NULL;  // make compiler happy
+EnumGenerator::EnumGenerator(const EnumDescriptor* descriptor) :
+    SourceGeneratorBase(descriptor->file()),
+    descriptor_(descriptor) {
 }
 
-void GeneratorContext::ListParsedFiles(
-    vector<const FileDescriptor*>* output) {
-  GOOGLE_LOG(FATAL) << "This GeneratorContext does not support ListParsedFiles";
+EnumGenerator::~EnumGenerator() {
 }
 
-// Parses a set of comma-delimited name/value pairs.
-void ParseGeneratorParameter(const string& text,
-                             vector<pair<string, string> >* output) {
-  vector<string> parts;
-  SplitStringUsing(text, ",", &parts);
-
-  for (int i = 0; i < parts.size(); i++) {
-    string::size_type equals_pos = parts[i].find_first_of('=');
-    pair<string, string> value;
-    if (equals_pos == string::npos) {
-      value.first = parts[i];
-      value.second = "";
-    } else {
-      value.first = parts[i].substr(0, equals_pos);
-      value.second = parts[i].substr(equals_pos + 1);
-    }
-    output->push_back(value);
+void EnumGenerator::Generate(io::Printer* printer) {
+  WriteEnumDocComment(printer, descriptor_);
+  WriteGeneratedCodeAttributes(printer);
+  printer->Print("$access_level$ enum $name$ {\n",
+                 "access_level", class_access_level(),
+                 "name", descriptor_->name());
+  printer->Indent();
+  for (int i = 0; i < descriptor_->value_count(); i++) {
+      WriteEnumValueDocComment(printer, descriptor_->value(i));
+      printer->Print("$name$ = $number$,\n",
+                   "name", descriptor_->value(i)->name(),
+                   "number", SimpleItoa(descriptor_->value(i)->number()));
   }
+  printer->Outdent();
+  printer->Print("}\n");
+  printer->Print("\n");
 }
 
+}  // namespace csharp
 }  // namespace compiler
 }  // namespace protobuf
 }  // namespace google