Android 如何以编程方式按下后退按钮

Question

How to programmatically press the back button. I have a small code that opens a tab in the Chrome browser. After some time, if you press the back button on the phone with your hands, the open tab will close and my application will activate. How can I implement this programmatically? If you use this.onBackPressed(), then it will apply to my application will not lead to the desired result. Here is the code on Kotlin with which I open the tab:

val intent = Intent(Intent.ACTION_VIEW)
intent.data = Uri.parse("https://www.google.ru/")
intent.setPackage("com.android.chrome")
startActivity(intent)