third_party/protobuf: Update to HEAD (83d681ee2c)

third_party/protobuf/src/google/protobuf/compiler/java/java_enum.cc

Index: third_party/protobuf/src/google/protobuf/compiler/java/java_enum.cc
diff --git a/third_party/protobuf/src/google/protobuf/compiler/java/java_enum.cc b/third_party/protobuf/src/google/protobuf/compiler/java/java_enum.cc
index 947b80e4147d36521f019e3304f0f147ea072ed9..b46cfe9cc6236896e4e3924710a144aa262b8fc8 100644
--- a/third_party/protobuf/src/google/protobuf/compiler/java/java_enum.cc
+++ b/third_party/protobuf/src/google/protobuf/compiler/java/java_enum.cc
@@ -86,10 +86,12 @@ EnumGenerator::~EnumGenerator() {}
 
 void EnumGenerator::Generate(io::Printer* printer) {
   WriteEnumDocComment(printer, descriptor_);
+  MaybePrintGeneratedAnnotation(context_, printer, descriptor_, immutable_api_);
   printer->Print(
-    "public enum $classname$\n"
-    "    implements com.google.protobuf.ProtocolMessageEnum {\n",
-    "classname", descriptor_->name());
+      "public enum $classname$\n"
+      "    implements com.google.protobuf.ProtocolMessageEnum {\n",
+      "classname", descriptor_->name());
+  printer->Annotate("classname", descriptor_);
   printer->Indent();
 
   bool ordinal_is_index = true;