tree 33c9d3232df5a207554865571ec30eee9b860aeb
parent f4c3f4562eeeaeab99a19d4a293d062936c5a2ee
author Corentin Wallez <cwallez@chromium.org> 1554966868 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1554966868 +0000

Metal: Fail BackendConnection creation when Metal isn't supported

Chromium still supports macOS 10.10 that doesn't have Metal support and
calling any Metal function there results in a crash. Prevent using the
backend when Metal isn't present by not creating a BackendConnection.

BUG=chromium:852089

Change-Id: I53ffe6972f7b926b6bcbe740275fcee88b9df67a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/6480
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>