The patch also removes some NS_ENSURE_ARG_POINTER checks from these attributes'
getters. Most of these getters already lack such checks, and as long as the
infallible getters are used a non-null pointer is guaranteed. In the worst case
we'll safely null-crash anyway.

--HG--
extra : rebase_source : 87d4f7fccfa7ffb605c514cf8c2abd270a13b24a