src/vs/workbench/contrib/welcome/walkThrough/browser/walkThroughInput.ts/WalkThroughInput/relativeScrollPosition
class WalkThroughInput:	public relativeScrollPosition(topScroll: number, bottomScroll: number) {
		this.maxTopScroll = Math.max(this.maxTopScroll, topScroll);
		this.maxBottomScroll = Math.max(this.maxBottomScroll, bottomScroll);
	}