third_party/protobuf: Update to HEAD (83d681ee2c)

third_party/protobuf/java/compatibility_tests/v2.5.0/protos/src/proto/com/google/protobuf/nested_builders_test.proto

Index: third_party/protobuf/java/compatibility_tests/v2.5.0/protos/src/proto/com/google/protobuf/nested_builders_test.proto
diff --git a/third_party/protobuf/src/google/protobuf/util/internal/testdata/struct.proto b/third_party/protobuf/java/compatibility_tests/v2.5.0/protos/src/proto/com/google/protobuf/nested_builders_test.proto
similarity index 79%
copy from third_party/protobuf/src/google/protobuf/util/internal/testdata/struct.proto
copy to third_party/protobuf/java/compatibility_tests/v2.5.0/protos/src/proto/com/google/protobuf/nested_builders_test.proto
index c15aba0d6d9881b8963a0353cdd1e0aa0b4adc11..abffb9d2ba22f44e2454539c25f5815e5cb9bfe5 100644
--- a/third_party/protobuf/src/google/protobuf/util/internal/testdata/struct.proto
+++ b/third_party/protobuf/java/compatibility_tests/v2.5.0/protos/src/proto/com/google/protobuf/nested_builders_test.proto
@@ -1,6 +1,6 @@
 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
-// https://developers.google.com/protocol-buffers/
+// http://code.google.com/p/protobuf/
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
@@ -28,18 +28,26 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Proto to test proto3 struct.
-syntax = "proto3";
+// Author: jonp@google.com (Jon Perlow)
+//
+
+package protobuf_unittest;
 
-package google.protobuf.testing.structs;
-option java_package = "com.google.protobuf.testing.structs";
+option java_multiple_files = true;
+option java_outer_classname = "NestedBuilders";
 
-import "google/protobuf/struct.proto";
 
-message StructType {
-  google.protobuf.Struct object = 1;
+message Vehicle {
+  optional Engine engine = 1;
+  repeated Wheel wheel = 2;
+}
+
+message Engine {
+  optional int32 cylinder = 1;
+  optional int32 liters = 2;
 }
 
-service TestService {
-  rpc Call(StructType) returns (StructType);
+message Wheel {
+  optional int32 radius = 1;
+  optional int32 width = 2;
 }