Add Mojo{Set,Get}DataPipeProducerOptions() to the NaCl system thunks.

mojo/public/platform/nacl/libmojo.cc

Index: mojo/public/platform/nacl/libmojo.cc
diff --git a/mojo/public/platform/nacl/libmojo.cc b/mojo/public/platform/nacl/libmojo.cc
index bcd9cf31cbf987c8b31c7c73ec434f53e5ff83d5..415d95003d083b4919cee2a1da7c6b2618aaa952 100644
--- a/mojo/public/platform/nacl/libmojo.cc
+++ b/mojo/public/platform/nacl/libmojo.cc
@@ -123,6 +123,27 @@ MojoResult MojoCreateDataPipe(const struct MojoCreateDataPipeOptions* options,
                                       data_pipe_consumer_handle);
 }
 
+MojoResult MojoSetDataPipeProducerOptions(
+    MojoHandle data_pipe_producer_handle,
+    const struct MojoDataPipeProducerOptions* options) {
+  struct nacl_irt_mojo* irt_mojo = get_irt_mojo();
+  if (!irt_mojo)
+    abort();
+  return irt_mojo->MojoSetDataPipeProducerOptions(data_pipe_producer_handle,
+                                                  options);
+}
+
+MojoResult MojoGetDataPipeProducerOptions(
+    MojoHandle data_pipe_producer_handle,
+    struct MojoDataPipeProducerOptions* options,
+    uint32_t options_num_bytes) {
+  struct nacl_irt_mojo* irt_mojo = get_irt_mojo();
+  if (!irt_mojo)
+    abort();
+  return irt_mojo->MojoGetDataPipeProducerOptions(data_pipe_producer_handle,
+                                                  options, options_num_bytes);
+}
+
 MojoResult MojoWriteData(MojoHandle data_pipe_producer_handle,
                          const void* elements,
                          uint32_t* num_bytes,