For inline content specific invalidation.
Created attachment 435743 [details] Patch
Created attachment 435772 [details] Patch
Created attachment 435773 [details] Patch
Created attachment 435815 [details] Patch
<rdar://problem/82324227>
Created attachment 438146 [details] Patch
Committed r282401 (241662@main): <https://commits.webkit.org/241662@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 438146 [details].