heap: HeapLinkedHashSet: Separate GCed from DISALLOW_NEW type

This separates HeapHashCountedSet into two separate types:
- HeapLinkedHashSet: For use on stack and in-object fields.
- GCedHeapLinkedHashSet: For dynamically allocating with
  MakeGarbageCollected().

Bug: 392817527
Change-Id: Ia864b65889f0188fc0a17c5c998e593a2892b3d0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6330397
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1429380}