MomentumEventDispatcher currently assumes that EventDispatcher is its only client, but it needs to be a little more generic for use in the UI process.
<rdar://problem/105635572>
Pull request: https://github.com/WebKit/WebKit/pull/10338
Committed 260522@main (dacbd7c36056): <https://commits.webkit.org/260522@main> Reviewed commits have been landed. Closing PR #10338 and removing active labels.