| Index: mojo/edk/system/data_pipe.h
 | 
| diff --git a/mojo/edk/system/data_pipe.h b/mojo/edk/system/data_pipe.h
 | 
| index f17416bfdc220bdf44e21a6aa47fdcc825158981..d2b90bf1ab6a138f26dd358d7d03c7ace4f3bf94 100644
 | 
| --- a/mojo/edk/system/data_pipe.h
 | 
| +++ b/mojo/edk/system/data_pipe.h
 | 
| @@ -5,6 +5,8 @@
 | 
|  #ifndef MOJO_EDK_SYSTEM_DATA_PIPE_H_
 | 
|  #define MOJO_EDK_SYSTEM_DATA_PIPE_H_
 | 
|  
 | 
| +#include <stddef.h>
 | 
| +
 | 
|  #include "base/compiler_specific.h"
 | 
|  #include "mojo/edk/embedder/platform_handle_vector.h"
 | 
|  #include "mojo/edk/embedder/scoped_platform_handle.h"
 | 
| 
 |