Convert m_scrollingNodeToLayerMap to use WeakPtr<RenderLayer>
Created attachment 392040 [details] Patch
Comment on attachment 392040 [details] Patch Clearing flags on attachment: 392040 Committed r257689: <https://trac.webkit.org/changeset/257689>
All reviewed patches have been landed. Closing bug.
<rdar://problem/59930405>