Add ref counted wrapped around GrTexture ReleaseProc

Bug: skia:
Change-Id: I0cd11a539fd6b16d4b3f9512694f84e0a429518c
Reviewed-on: https://skia-review.googlesource.com/101341
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
11 files changed