src/vs/editor/contrib/find/findWidget.ts/FindWidget/_getHeight
class FindWidget:	private _getHeight(): number {
		let totalheight = 0;

		// find input margin top
		totalheight += 4;

		// find input height
		totalheight += this._findInput.inputBox.height + 2 /** input box border */;

		if (this._isReplaceVisible) {
			// replace input margin
			totalheight += 4;

			totalheight += this._replaceInput.inputBox.height + 2 /** input box border */;
		}

		// margin bottom
		totalheight += 4;
		return totalheight;
	}