Change refPinnedTextureProxy to return a view instead.

Bug: skia:9556
Change-Id: Iad3fbadb893d029fc39f0b682c9f8fc223c010a5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/268843
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
8 files changed