Send DEVICE_OWNER_CHANGED to manifest receivers in background

- DEVICE_OWNER_CHANGED is an event that could happen maximum of 2 times
after device factory reset. The event rarely
happens, and it shouldn't affect any system health

Fix: 34446573
Test: adb shell am instrument -w -e class
com.android.server.devicepolicy.DevicePolicyManagerTest
com.android.frameworks.servicestests/android.support.test.runner.AndroidJUnitRunner

Change-Id: Ic1af2016f590e1200bb3e56f63caa0e0b12f71f8
diff --git a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
index f3b0131..a8f0929 100644
--- a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
+++ b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
@@ -6110,7 +6110,8 @@
             try {
                 // TODO Send to system too?
                 mContext.sendBroadcastAsUser(
-                        new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED),
+                        new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED)
+                                .addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND),
                         UserHandle.of(userId));
             } finally {
                 mInjector.binderRestoreCallingIdentity(ident);
@@ -6253,6 +6254,7 @@
                 clearDeviceOwnerLocked(admin, deviceOwnerUserId);
                 removeActiveAdminLocked(deviceOwnerComponent, deviceOwnerUserId);
                 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED);
+                intent.addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND);
                 mContext.sendBroadcastAsUser(intent, UserHandle.of(deviceOwnerUserId));
             } finally {
                 mInjector.binderRestoreCallingIdentity(ident);