| Index: ipc/ipc_message_attachment_set.h
 | 
| diff --git a/ipc/ipc_message_attachment_set.h b/ipc/ipc_message_attachment_set.h
 | 
| index 6a94b1946d12f9b640d188a0c51b0bb5a1920d7a..764c818c9f07b9014240a25bf2f306d58bc16c57 100644
 | 
| --- a/ipc/ipc_message_attachment_set.h
 | 
| +++ b/ipc/ipc_message_attachment_set.h
 | 
| @@ -5,10 +5,13 @@
 | 
|  #ifndef IPC_IPC_MESSAGE_ATTACHMENT_SET_H_
 | 
|  #define IPC_IPC_MESSAGE_ATTACHMENT_SET_H_
 | 
|  
 | 
| +#include <stddef.h>
 | 
| +
 | 
|  #include <vector>
 | 
|  
 | 
|  #include "base/macros.h"
 | 
|  #include "base/memory/ref_counted.h"
 | 
| +#include "build/build_config.h"
 | 
|  #include "ipc/ipc_export.h"
 | 
|  
 | 
|  #if defined(OS_POSIX)
 | 
| 
 |