From 08cf0ab5043b044b9dc6eebadd53eaeac43160d8 Mon Sep 17 00:00:00 2001
From: Badhri Jagan Sridharan <badhri@google.com>
Date: Tue, 28 Sep 2021 16:39:12 -0700
Subject: [PATCH] Set flag to disallow non system window overlays to prevent
 tapjacking

Bug: 183609798
Test: manual
Change-Id: Id2f3262142817a6eccad902913d69bcf2c3f6c60
---
 .../systemui/usb/UsbDebuggingSecondaryUserActivity.java        | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/SystemUI/src/com/android/systemui/usb/UsbDebuggingSecondaryUserActivity.java b/packages/SystemUI/src/com/android/systemui/usb/UsbDebuggingSecondaryUserActivity.java
index 4850a025b6841..2871263dbb1e9 100644
--- a/packages/SystemUI/src/com/android/systemui/usb/UsbDebuggingSecondaryUserActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/usb/UsbDebuggingSecondaryUserActivity.java
@@ -30,6 +30,7 @@ import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.SystemProperties;
 import android.util.Log;
+import android.view.WindowManager;
 
 import com.android.internal.app.AlertActivity;
 import com.android.internal.app.AlertController;
@@ -51,6 +52,8 @@ public class UsbDebuggingSecondaryUserActivity extends AlertActivity
 
     @Override
     public void onCreate(Bundle icicle) {
+        getWindow().addSystemFlags(
+                WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
         super.onCreate(icicle);
 
         if (SystemProperties.getInt("service.adb.tcp.port", 0) == 0) {