Avoid redundant ByteSizeLong() call.

Given we have called ByteSizeLog() at line 52, we can use WithCachedSizes here.

PiperOrigin-RevId: 656534835

include/grpcpp/impl/codegen/config_protobuf.h

@@ -71,6 +71,7 @@
 #define GRPC_CUSTOM_ZEROCOPYINPUTSTREAM \
   ::google::protobuf::io::ZeroCopyInputStream
 #define GRPC_CUSTOM_CODEDINPUTSTREAM ::google::protobuf::io::CodedInputStream
+#define GRPC_CUSTOM_CODEDOUTPUTSTREAM ::google::protobuf::io::CodedOutputStream
 #endif
 
 #ifndef GRPC_CUSTOM_JSONUTIL
@@ -113,6 +114,7 @@ namespace io {
 typedef GRPC_CUSTOM_ZEROCOPYOUTPUTSTREAM ZeroCopyOutputStream;
 typedef GRPC_CUSTOM_ZEROCOPYINPUTSTREAM ZeroCopyInputStream;
 typedef GRPC_CUSTOM_CODEDINPUTSTREAM CodedInputStream;
+typedef GRPC_CUSTOM_CODEDOUTPUTSTREAM CodedOutputStream;
 }  // namespace io
 
 }  // namespace protobuf

include/grpcpp/impl/proto_utils.h

@@ -61,7 +61,9 @@ Status GenericSerialize(const grpc::protobuf::MessageLite& msg, ByteBuffer* bb,
     return grpc::Status::OK;
   }
   ProtoBufferWriter writer(bb, kProtoBufferWriterMaxBufferLength, byte_size);
-  return msg.SerializeToZeroCopyStream(&writer)
+  protobuf::io::CodedOutputStream cs(&writer);
+  msg.SerializeWithCachedSizes(&cs);
+  return !cs.HadError()
              ? grpc::Status::OK
              : Status(StatusCode::INTERNAL, "Failed to serialize message");
 }