The missing check for the "Depth" dimension could lead to a bug
where we would not recreate a texture when the dimension changed.

Bug: chromium:1210414
Change-Id: Id59097ad14ae77ff80d27081f61786dad17a77ea
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2911032Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
(cherry picked from commit 26973584)
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2937026Reviewed-by: Jamie Madill <jmadill@chromium.org>