From 2844d75a367dcd5557e411e5dfd5c65d1f9f879b Mon Sep 17 00:00:00 2001
From: Badhri Jagan Sridharan <badhri@google.com>
Date: Tue, 28 Sep 2021 16:40:12 -0700
Subject: [PATCH] Set flag to disallow non system window overlays to prevent
 tapjacking

Bug: 183609854
Test: manual
Change-Id: I4e63a98c875742ef0068d381d5fd4ec38c267768
---
 .../src/com/android/systemui/usb/UsbResolverActivity.java      | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/SystemUI/src/com/android/systemui/usb/UsbResolverActivity.java b/packages/SystemUI/src/com/android/systemui/usb/UsbResolverActivity.java
index c420a6de80162..02a763794a6c0 100644
--- a/packages/SystemUI/src/com/android/systemui/usb/UsbResolverActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/usb/UsbResolverActivity.java
@@ -33,6 +33,7 @@ import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.UserHandle;
 import android.util.Log;
+import android.view.WindowManager;
 import android.widget.CheckBox;
 
 import com.android.internal.app.ResolverActivity;
@@ -60,6 +61,8 @@ public class UsbResolverActivity extends ResolverActivity {
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
+        getWindow().addSystemFlags(
+                WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
         Intent intent = getIntent();
         Parcelable targetParcelable = intent.getParcelableExtra(Intent.EXTRA_INTENT);
         if (!(targetParcelable instanceof Intent)) {