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

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
index b493495da7ee7281928a6578d922d09dd13d4b17..565d12259fdce20de056695e2695d0c8444e3c1c 100644
--- 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
@@ -48,8 +48,9 @@ namespace compiler {
 namespace csharp {
 
 MapFieldGenerator::MapFieldGenerator(const FieldDescriptor* descriptor,
-                                             int fieldOrdinal)
-    : FieldGeneratorBase(descriptor, fieldOrdinal) {
+                                     int fieldOrdinal,
+                                     const Options* options)
+    : FieldGeneratorBase(descriptor, fieldOrdinal, options) {
 }
 
 MapFieldGenerator::~MapFieldGenerator() {
@@ -62,9 +63,10 @@ void MapFieldGenerator::GenerateMembers(io::Printer* printer) {
       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));
+  scoped_ptr<FieldGeneratorBase> key_generator(
+      CreateFieldGenerator(key_descriptor, 1, this->options()));
+  scoped_ptr<FieldGeneratorBase> value_generator(
+      CreateFieldGenerator(value_descriptor, 2, this->options()));
 
   printer->Print(
     variables_,
@@ -76,7 +78,7 @@ void MapFieldGenerator::GenerateMembers(io::Printer* 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");
+    "private readonly pbc::MapField<$key_type_name$, $value_type_name$> $name$_ = new pbc::MapField<$key_type_name$, $value_type_name$>();\n");
   WritePropertyDocComment(printer, descriptor_);
   AddDeprecatedFlag(printer);
   printer->Print(