src/vs/workbench/browser/parts/titlebar/menubarControl.ts/CustomMenubarControl/getMenubarItemsDimensions
class CustomMenubarControl:	getMenubarItemsDimensions(): Dimension {
		if (this.menubar) {
			return new Dimension(this.menubar.getWidth(), this.menubar.getHeight());
		}

		return new Dimension(0, 0);
	}