src/vs/platform/driver/electron-main/driver.ts/Driver/getElementXY
class Driver:	async getElementXY(windowId: number, selector: string, xoffset?: number, yoffset?: number): Promise<{ x: number; y: number; }> {
		const windowDriver = await this.getWindowDriver(windowId);
		return await windowDriver.getElementXY(selector, xoffset, yoffset);
	}