Fix exactify for explicit resource allocation (take 2)

TBR=bsalomon@google.com
Bug: b/138674523
Change-Id: I7a88ca2b47c88356a53310a4a01078a02a6e1356
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/233556
Reviewed-by: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
3 files changed