Update deprecated wgpu:: structures.
Update deprecated wgpu:: structures.

Bug: dawn:22
Change-Id: I0428b7e6a3d678b606a4e51a43a573d5c31172d1
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/440996
Commit-Queue: Stephen White <30b0ee0ef1651e8ba59cfd41f16e23abfe9aca8a@google.com>
Auto-Submit: Corentin Wallez <470c533e86f4f848c98c7e11fffc2d043494a401@chromium.org>
Reviewed-by: Stephen White <30b0ee0ef1651e8ba59cfd41f16e23abfe9aca8a@google.com>

google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia