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

third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_wrapper_field.h

Index: third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_wrapper_field.h
diff --git a/third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_wrapper_field.h b/third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_wrapper_field.h
index 6e2414af83d93be4c61add83fbe0dcfe3f94c5c8..250dfd25486d1ce00e961f1ef4413e7d681df21b 100644
--- a/third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_wrapper_field.h
+++ b/third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_wrapper_field.h
@@ -41,9 +41,13 @@ namespace protobuf {
 namespace compiler {
 namespace csharp {
 
+struct Options;
+
 class WrapperFieldGenerator : public FieldGeneratorBase {
  public:
-  WrapperFieldGenerator(const FieldDescriptor* descriptor, int fieldOrdinal);
+  WrapperFieldGenerator(const FieldDescriptor* descriptor,
+                        int fieldOrdinal,
+                        const Options *options);
   ~WrapperFieldGenerator();
 
   virtual void GenerateCodecCode(io::Printer* printer);
@@ -65,7 +69,9 @@ class WrapperFieldGenerator : public FieldGeneratorBase {
 
 class WrapperOneofFieldGenerator : public WrapperFieldGenerator {
  public:
-  WrapperOneofFieldGenerator(const FieldDescriptor* descriptor, int fieldOrdinal);
+  WrapperOneofFieldGenerator(const FieldDescriptor* descriptor,
+                             int fieldOrdinal,
+                             const Options *options);
   ~WrapperOneofFieldGenerator();
 
   virtual void GenerateMembers(io::Printer* printer);