Antonio Maiorano e0bee791cb Add ifdefs for Tint API usage that may not be available
Fixed Kokoro failures when building Tint with all readers and writers
disabled.

Change-Id: I9bd041339236488dd563bbe687da883035f2a4b7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86181
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
2022-04-11 15:21:41 +00:00
..
2020-02-07 23:46:30 +00:00