Send a public broadcast when the device owner is set.

Make it a protected broadcast.

BUG: 22623518
Change-Id: Ia36e8f0b80a6301d7d8e0461476842c78762b5e8

Author: Nicolas Prevot

api/current.txt

@@ -5696,6 +5696,7 @@ package android.app.admin {
     method public void uninstallCaCert(android.content.ComponentName, byte[]);
     method public void wipeData(int);
     field public static final java.lang.String ACTION_ADD_DEVICE_ADMIN = "android.app.action.ADD_DEVICE_ADMIN";
+    field public static final java.lang.String ACTION_DEVICE_OWNER_CHANGED = "android.app.action.DEVICE_OWNER_CHANGED";
     field public static final java.lang.String ACTION_MANAGED_PROFILE_PROVISIONED = "android.app.action.MANAGED_PROFILE_PROVISIONED";
     field public static final java.lang.String ACTION_PROVISION_MANAGED_DEVICE = "android.app.action.PROVISION_MANAGED_DEVICE";
     field public static final java.lang.String ACTION_PROVISION_MANAGED_PROFILE = "android.app.action.PROVISION_MANAGED_PROFILE";

api/system-current.txt

@@ -5828,6 +5828,7 @@ package android.app.admin {
     method public void uninstallCaCert(android.content.ComponentName, byte[]);
     method public void wipeData(int);
     field public static final java.lang.String ACTION_ADD_DEVICE_ADMIN = "android.app.action.ADD_DEVICE_ADMIN";
+    field public static final java.lang.String ACTION_DEVICE_OWNER_CHANGED = "android.app.action.DEVICE_OWNER_CHANGED";
     field public static final java.lang.String ACTION_MANAGED_PROFILE_PROVISIONED = "android.app.action.MANAGED_PROFILE_PROVISIONED";
     field public static final java.lang.String ACTION_PROVISION_MANAGED_DEVICE = "android.app.action.PROVISION_MANAGED_DEVICE";
     field public static final java.lang.String ACTION_PROVISION_MANAGED_PROFILE = "android.app.action.PROVISION_MANAGED_PROFILE";

core/java/android/app/admin/DevicePolicyManager.java

@@ -690,14 +690,24 @@ public static DevicePolicyManager create(Context context, Handler handler) {
             = "android.app.extra.PROFILE_OWNER_NAME";
 
     /**
-     * Activity action: send when any policy admin changes a policy.
+     * Broadcast action: send when any policy admin changes a policy.
      * This is generally used to find out when a new policy is in effect.
      *
      * @hide
      */
     public static final String ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED
             = "android.app.action.DEVICE_POLICY_MANAGER_STATE_CHANGED";
 
+    /**
+     * Broadcast action: sent when the device owner is set or changed.
+     *
+     * This broadcast is sent only to the primary user.
+     * @see #ACTION_PROVISION_MANAGED_DEVICE
+     */
+    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
+    public static final String ACTION_DEVICE_OWNER_CHANGED
+            = "android.app.action.DEVICE_OWNER_CHANGED";
+
     /**
      * The ComponentName of the administrator component.
      *

core/res/AndroidManifest.xml

@@ -319,6 +319,7 @@
 
     <protected-broadcast android:name="android.internal.policy.action.BURN_IN_PROTECTION" />
     <protected-broadcast android:name="android.app.action.SYSTEM_UPDATE_POLICY_CHANGED" />
+    <protected-broadcast android:name="android.app.action.DEVICE_OWNER_CHANGED" />
     <!-- ====================================================================== -->
     <!--                          RUNTIME PERMISSIONS                           -->
     <!-- ====================================================================== -->

services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java

@@ -4140,6 +4140,14 @@ public boolean setDeviceOwner(String packageName, String ownerName) {
             }
             mDeviceOwner.writeOwnerFile();
             updateDeviceOwnerLocked();
+            Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED);
+
+            ident = Binder.clearCallingIdentity();
+            try {
+                mContext.sendBroadcastAsUser(intent, UserHandle.OWNER);
+            } finally {
+                Binder.restoreCallingIdentity(ident);
+            }
             return true;
         }
     }