Reland "Scrub memory released from a GrMemoryPool in debug mode."
Reland "Scrub memory released from a GrMemoryPool in debug mode."

This is a reland of c0315a72d9492f56b4353e269170baaa13d201dc

Original change's description:
> Scrub memory released from a GrMemoryPool in debug mode.
>
> In debug mode, we now overwrite released memory with 0xDD. This is
> intended to make use-after-free errors easier to catch while debugging.
>
> Change-Id: I04a4c5abcfef5f3f604a2430da15a8b5125239af
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/352956
> Auto-Submit: John Stiles <f4fcf42d3bb5924557f1eeb3be66747535e585da@google.com>
> Reviewed-by: Brian Osman <794c0b5534edf5601d88e1d41975d0262da12894@google.com>
> Commit-Queue: John Stiles <f4fcf42d3bb5924557f1eeb3be66747535e585da@google.com>

Change-Id: Id79cadb196868b467fb6d9107eb313bdc147b4f0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/353419
Commit-Queue: Brian Osman <794c0b5534edf5601d88e1d41975d0262da12894@google.com>
Reviewed-by: Brian Osman <794c0b5534edf5601d88e1d41975d0262da12894@google.com>
Auto-Submit: John Stiles <f4fcf42d3bb5924557f1eeb3be66747535e585da@google.com>

google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia