Remove all remaining uses of origin getter on proxy.

Bug: skia:9556
Change-Id: Id8a1ba9e46f4df9bb181d6b0e9248fe4bfc5b5a0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/270716
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
17 files changed