[NaCL SDK] Ship sys/mount.h for newlib/pnacl.

native_client_sdk/src/libraries/nacl_io/nacl_io.h

Index: native_client_sdk/src/libraries/nacl_io/nacl_io.h
diff --git a/native_client_sdk/src/libraries/nacl_io/nacl_io.h b/native_client_sdk/src/libraries/nacl_io/nacl_io.h
index e72b5a5f5ae29009fc3666a2760577d09b31f283..058ba68c708ce331697d847bfdd7614fa49aef00 100644
--- a/native_client_sdk/src/libraries/nacl_io/nacl_io.h
+++ b/native_client_sdk/src/libraries/nacl_io/nacl_io.h
@@ -8,20 +8,20 @@
 #include <ppapi/c/pp_instance.h>
 #include <ppapi/c/ppb.h>
 
-#include "nacl_io/kernel_wrap.h"
 #include "sdk_util/macros.h"
 
 EXTERN_C_BEGIN
 
-
-/** Initialize nacl_io.
+/**
+ * Initialize nacl_io.
  *
  * NOTE: If you initialize nacl_io with this constructor, you cannot
  * use any mounts that require PPAPI; e.g. persistent storage, etc.
  */
 void nacl_io_init();
 
-/** Initialize nacl_io with PPAPI support.
+/**
+ * Initialize nacl_io with PPAPI support.
  *
  * Usage:
  *   PP_Instance instance;
@@ -42,7 +42,11 @@ void nacl_io_init_ppapi(PP_Instance instance,
                         PPB_GetInterface get_interface);
 
 
-/** Mount a new filesystem type.
+/**
+ * Mount a new filesystem type.
+ *
+ * This function is declared in <sys/mount.h>, but we document it here
+ * because nacl_io is controlled primarily through mount(2)/umount(2).
  *
  * Some parameters are dependent on the filesystem type being mounted.
  *
@@ -108,9 +112,10 @@ void nacl_io_init_ppapi(PP_Instance instance,
  * @param[in] mountflags Unused.
  * @param[in] data Depends on the filesystem type. See above.
  * @return 0 on success, -1 on failure (with errno set).
+ *
+ * int mount(const char* source, const char* target, const char* filesystemtype,
+ *         unsigned long mountflags, const void *data) NOTHROW;
  */
-int mount(const char* source, const char* target, const char* filesystemtype,
-          unsigned long mountflags, const void *data) NOTHROW;
 
 EXTERN_C_END