Add internal calls for updateCompressedBackendTexture.
This splits the creation and the updating of backend compressed textures
below the public API level. In a follow on change I will add the public
api call to updateCompressedBackendTexture.
Bug: chromium:1099255
Change-Id: Ie410cfb42046d0e0c8f4fe60055be5782f811d47
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/301577
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
15 files changed