Add thunks for MojoDuplicateHandle[WithReducedRights]().

mojo/public/platform/native/system_thunks.h

 // Copyright 2014 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_THUNKS_H_
 #define MOJO_PUBLIC_PLATFORM_NATIVE_SYSTEM_THUNKS_H_
 
 #include <stddef.h>
@@ skipping 109 matching lines @@
       struct MojoDataPipeConsumerOptions* options,
       uint32_t options_num_bytes);
   MojoResult (*SetDataPipeProducerOptions)(
       MojoHandle data_pipe_producer_handle,
       const struct MojoDataPipeProducerOptions* options);
   MojoResult (*GetDataPipeProducerOptions)(
       MojoHandle data_pipe_producer_handle,
       struct MojoDataPipeProducerOptions* options,
       uint32_t options_num_bytes);
   MojoResult (*GetRights)(MojoHandle handle, MojoHandleRights* rights);
+  MojoResult (*DuplicateHandleWithReducedRights)(
+      MojoHandle handle,
+      MojoHandleRights rights_to_remove,
+      MojoHandle* new_handle);
+  MojoResult (*DuplicateHandle)(MojoHandle handle, MojoHandle* new_handle);
 };
 #pragma pack(pop)
 
 
 #ifdef __cplusplus
 // Intended to be called from the embedder. Returns a |MojoCore| initialized
 // to contain pointers to each of the embedder's MojoCore functions.
 inline MojoSystemThunks MojoMakeSystemThunks() {
   MojoSystemThunks system_thunks = {
       sizeof(MojoSystemThunks),
@@ skipping 14 matching lines @@
       MojoCreateSharedBuffer,
       MojoDuplicateBufferHandle,
       MojoMapBuffer,
       MojoUnmapBuffer,
       MojoGetBufferInformation,
       MojoSetDataPipeConsumerOptions,
       MojoGetDataPipeConsumerOptions,
       MojoSetDataPipeProducerOptions,
       MojoGetDataPipeProducerOptions,
       MojoGetRights,
+      MojoDuplicateHandleWithReducedRights,
+      MojoDuplicateHandle,
   };
   return system_thunks;
 }
 #endif
 
 
 // Use this type for the function found by dynamically discovering it in
 // a DSO linked with mojo_system. For example:
 // MojoSetSystemThunksFn mojo_set_system_thunks_fn =
 //     reinterpret_cast<MojoSetSystemThunksFn>(app_library.GetFunctionPointer(
 //         "MojoSetSystemThunks"));
 // The expected size of |system_thunks} is returned.
 // The contents of |system_thunks| are copied.
 typedef size_t (*MojoSetSystemThunksFn)(
     const struct MojoSystemThunks* system_thunks);
 
 #endif  // MOJO_PUBLIC_PLATFORM_NATIVE_SYSTEM_THUNKS_H_