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

mojo/public/platform/native/system_impl_private.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Note: This header should be compilable as C.
 
 #ifndef MOJO_PUBLIC_PLATFORM_NATIVE_SYSTEM_IMPL_PRIVATE_H_
 #define MOJO_PUBLIC_PLATFORM_NATIVE_SYSTEM_IMPL_PRIVATE_H_
 
 #include "mojo/public/c/system/buffer.h"
@@ skipping 83 matching lines @@
                                    uint32_t* num_elements,
                                    MojoWriteDataFlags flags);
 MojoResult MojoSystemImplBeginWriteData(MojoSystemImpl system,
                                         MojoHandle data_pipe_producer_handle,
                                         void** buffer,
                                         uint32_t* buffer_num_elements,
                                         MojoWriteDataFlags flags);
 MojoResult MojoSystemImplEndWriteData(MojoSystemImpl system,
                                       MojoHandle data_pipe_producer_handle,
                                       uint32_t num_elements_written);
+MojoResult MojoSystemImplSetDataPipeConsumerOptions(
+    MojoSystemImpl system,
+    MojoHandle data_pipe_consumer_handle,
+    const struct MojoDataPipeConsumerOptions* options);
+MojoResult MojoSystemImplGetDataPipeConsumerOptions(
+    MojoSystemImpl system,
+    MojoHandle data_pipe_consumer_handle,
+    struct MojoDataPipeConsumerOptions* options,
+    uint32_t options_num_bytes);
 MojoResult MojoSystemImplReadData(MojoSystemImpl system,
                                   MojoHandle data_pipe_consumer_handle,
                                   void* elements,
                                   uint32_t* num_elements,
                                   MojoReadDataFlags flags);
 MojoResult MojoSystemImplBeginReadData(MojoSystemImpl system,
                                        MojoHandle data_pipe_consumer_handle,
                                        const void** buffer,
                                        uint32_t* buffer_num_elements,
                                        MojoReadDataFlags flags);
@@ skipping 21 matching lines @@
                                    uint64_t num_bytes,
                                    void** buffer,
                                    MojoMapBufferFlags flags);
 MojoResult MojoSystemImplUnmapBuffer(MojoSystemImpl system, void* buffer);
 
 #ifdef __cplusplus
 }  // extern "C"
 #endif  // __cplusplus
 
 #endif  // MOJO_PUBLIC_PLATFORM_NATIVE_SYSTEM_IMPL_PRIVATE_H_