Update GrSurface/RenderTargetContexts to take and store GrSurfaceProxyViews.

Bug: skia:9556
Change-Id: Ie1aed1b16c237e9c9d1b582ac4ff02fdaaad238f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/263205
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
25 files changed