Fix crash in OffscreenCanvas resource provider creation

Fixes: 1236548
Change-Id: I3740391398da9625f197c62a5c256e886e56b22a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3118885


Commit-Queue: Justin Novosad <junov@chromium.org>
Commit-Queue: Juanmi Huertas <juanmihd@chromium.org>
Auto-Submit: Justin Novosad <junov@chromium.org>
Reviewed-by: Juanmi Huertas <juanmihd@chromium.org>
Cr-Commit-Position: refs/heads/main@{#915203}