third_party/protobuf: Update to HEAD (83d681ee2c)

third_party/protobuf/src/google/protobuf/util/internal/testdata/proto3.proto

Index: third_party/protobuf/src/google/protobuf/util/internal/testdata/proto3.proto
diff --git a/third_party/protobuf/python/google/protobuf/internal/any_test.proto b/third_party/protobuf/src/google/protobuf/util/internal/testdata/proto3.proto
similarity index 90%
copy from third_party/protobuf/python/google/protobuf/internal/any_test.proto
copy to third_party/protobuf/src/google/protobuf/util/internal/testdata/proto3.proto
index cd641ca0b8efaab4d60767f359490946f90400fb..c013cee31e45eca69faf2ef8f21e4abb665793ce 100644
--- a/third_party/protobuf/python/google/protobuf/internal/any_test.proto
+++ b/third_party/protobuf/src/google/protobuf/util/internal/testdata/proto3.proto
@@ -28,15 +28,15 @@
 // (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: jieluo@google.com (Jie Luo)
-
 syntax = "proto3";
 
-package google.protobuf.internal;
-
-import "google/protobuf/any.proto";
+package google.protobuf.testing;
 
-message TestAny {
-  google.protobuf.Any value = 1;
-  int32 int_value = 2;
+message Proto3Message {
+  enum NestedEnum {
+    FOO = 0;
+    BAR = 1;
+    BAZ = 2;
+  }
+  NestedEnum enum_value = 1;
 }