Merge "Remove jank tracker from back panel" into main

                // Receiving a CANCEL implies that something else intercepted

                // the gesture, i.e., the user did not cancel their gesture.

                // Therefore, disappear immediately, with minimum fanfare.

                interactionJankMonitor.cancel(CUJ_BACK_PANEL_ARROW)

                updateArrowState(GestureState.GONE)

                velocityTracker = null

            }

        previousState = currentState

        currentState = newState

        // First, update the jank tracker

        when (currentState) {

            GestureState.ENTRY -> {

                interactionJankMonitor.cancel(CUJ_BACK_PANEL_ARROW)

                interactionJankMonitor.begin(mView, CUJ_BACK_PANEL_ARROW)

            }

            GestureState.GONE -> interactionJankMonitor.end(CUJ_BACK_PANEL_ARROW)

            else -> {}

        }

        when (currentState) {

            GestureState.CANCELLED -> {

                backCallback.cancelBack()