Have the GrShadowRRectOp make use of the thread-safe view cache
Have the GrShadowRRectOp make use of the thread-safe view cache

Maybe a hair faster for OOP-R/DDL-style rendering of the shadow_utils GM.

Bug: 1108408
Change-Id: If8827f7a765b8fc231f7a37178b7a12dc78357ea
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/321159
Reviewed-by: Greg Daniel <39df0a804564ccb6cf75f18db79653821f37c1c5@google.com>
Commit-Queue: Robert Phillips <95e8ac5504948c7bf91b22c16a8dbb7ae7c66bfd@google.com>

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