The new name is more consistent with the other names.

Refactoring change only.

Bug: angleproject:5736
Change-Id: Idc47fef29040e3a422267795c4536163a6f8eb4e
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2779953Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
Commit-Queue: Jamie Madill <jmadill@chromium.org>