ChatExample OnItemHeightChangedPreTwinPass Method

Only called for vertical ScrollRects. Called just before a "Twin" ComputeVisibility will execute. This can be used, for example, to disable a ContentSizeFitter on the item which was used to externally calculate the item's size in the current Twin ComputeVisibility pass

protected override void OnItemHeightChangedPreTwinPass(
	ChatMessageViewsHolder vh
)