Merge the 2021-09-05 SPL branch from AOSP-Partner

* security-aosp-pi-release:
  Forward fix for: Set FLAG_IMMUTABLE flag on FirstScreenBroadcast PendingIntent.
  Set FLAG_IMMUTABLE flag on FirstScreenBroadcast PendingIntent.

Change-Id: I450c647630378b8c2de21cdb3bb4b354b491233a
diff --git a/src/com/android/launcher3/model/FirstScreenBroadcast.java b/src/com/android/launcher3/model/FirstScreenBroadcast.java
index 1149b55..4d017bd 100644
--- a/src/com/android/launcher3/model/FirstScreenBroadcast.java
+++ b/src/com/android/launcher3/model/FirstScreenBroadcast.java
@@ -15,6 +15,9 @@
  */
 package com.android.launcher3.model;
 
+import static android.app.PendingIntent.FLAG_IMMUTABLE;
+import static android.app.PendingIntent.FLAG_ONE_SHOT;
+
 import android.app.PendingIntent;
 import android.content.Context;
 import android.content.Intent;
@@ -140,7 +143,7 @@
                 .putStringArrayListExtra(HOTSEAT_ITEM_EXTRA, new ArrayList<>(hotseatItems))
                 .putStringArrayListExtra(WIDGET_ITEM_EXTRA, new ArrayList<>(widgetItems))
                 .putExtra(VERIFICATION_TOKEN_EXTRA, PendingIntent.getActivity(context, 0,
-                        new Intent(), PendingIntent.FLAG_ONE_SHOT)));
+                        new Intent(), FLAG_ONE_SHOT | FLAG_IMMUTABLE)));
     }
 
     private static String getPackageName(ItemInfo info) {