Expose phase/momentumPhase on all platforms. If the platform doesn't actually implement then the Phase will always be PhaseNone.
Created attachment 387588 [details] Patch
Comment on attachment 387588 [details] Patch Clearing flags on attachment: 387588 Committed r254494: <https://trac.webkit.org/changeset/254494>
All reviewed patches have been landed. Closing bug.
<rdar://problem/58557722>