Prevent unbounded listener growth on SkPixelRefs.

Use SkIDChangeListener and update GrBitmapTextureMaker to add listener
to key to deregister if texture is purged before genID changes.

Add a common listener list implementation and replace existing lists.

Change-Id: Ib0c78241eaf59b59b892d8b004b2bb095140bc6d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/274549
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
22 files changed