Make GrSemaphore no longer derive from GrGPUResource.

Instead most things are now passed around as unique_ptrs

Bug: skia:9603
Change-Id: I2b2f5c68ba1964953dd1457b65433e6098597605
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/255086
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
29 files changed