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b631ef6979
Slider needs to find an ancestor in which it can add its tooltip overlay. When added in a PopupWindow, its possible to search up the view hierarchy and find a parent which is neither a View nor a ViewGroup. This change adds a check for this case A note is that this change updates edge cases to return the current parent if it is any valid ancestor instead of just returning null. This allows Slider's tooltip to be added to Popup windows, but doesn't guarantee that the tooltip will be fully visible since a PopupWindow's height might be smaller than the slider + tooltip. If adding a Slider to a PopupWindow, you might need to manually add height to your popup's content view to account for the tooltip or turn of the slider's label. PiperOrigin-RevId: 310913776