Adding the a11y delegate and a11y actions was dependent on there being a CoordinatorLayout child that both inherits from certain scrolling classes (NestedScrollingChild, ListView, ScrollView) and has an AppBarLayout scrolling behavior. This was too restrictive and so we only check for a behavior.
Any scrolling child may add an a11y delegate or scroll action to the parent CoordinatorLayout.
PiperOrigin-RevId: 448335380
(cherry picked from commit 4b81bb1d1a467d03b6f323639f5358ec14445c67)