This patch doesn't change behavior; it's just switching us between two
functions that do the same thing. (One is literally a trivial wrapper for the
other.)
We're using the new "InProcess" version of this API as a way of annotating
callsites that have been vetted as behaving properly in out-of-process iframes.
In this case in LocalAccessible.cpp, there's an existing code-comment that
indicates that the contextual code already considers & accounts for this
possibility, so it looks like this spot is OK.
Differential Revision: https://phabricator.services.mozilla.com/D108738
824ffd6518