impl SkTDynamicHash with SkTHashTable

The only vaguely tricky thing to adapt from templating on T to T*.

Don't think there's a need for the unit tests now right?

Bug: skia:9703
Change-Id: Ib8fcebd9e0e35bea5ef23e6fd5962654a28d587b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/277214
Auto-Submit: Mike Klein <mtklein@google.com>
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Herb Derby <herb@google.com>
3 files changed