[RESTRICT AUTOMERGE] Add hide-non-system-overlay flag for HarmfulAppWarningActivity am: 9c5c42ad03

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16743243

Change-Id: I7ddcae3ca03c33905fce0c00e447faf75aee0d18
diff --git a/core/java/com/android/internal/app/HarmfulAppWarningActivity.java b/core/java/com/android/internal/app/HarmfulAppWarningActivity.java
index ce2d229..33209e1 100644
--- a/core/java/com/android/internal/app/HarmfulAppWarningActivity.java
+++ b/core/java/com/android/internal/app/HarmfulAppWarningActivity.java
@@ -16,6 +16,8 @@
 
 package com.android.internal.app;
 
+import static android.view.WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS;
+
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
@@ -27,6 +29,7 @@
 import android.util.Log;
 import android.view.View;
 import android.widget.TextView;
+
 import com.android.internal.R;
 
 /**
@@ -48,6 +51,7 @@
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        getWindow().addSystemFlags(SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
         final Intent intent = getIntent();
         mPackageName = intent.getStringExtra(Intent.EXTRA_PACKAGE_NAME);
         mTarget = intent.getParcelableExtra(Intent.EXTRA_INTENT);