As Bug 134283, I would like to support css scroll snap for EFL port as well. I'm not sure when full patch is uploaded.
I will upload a patch as soon as it is ready.
Closing this bug because the EFL port has been removed from trunk.
If you feel this bug applies to a different upstream WebKit port and was closed in error, please either update the title and reopen the bug, or leave a comment to request this.