Merge "Updated removeActiveAdmin documentation" into nyc-dev

am: d34718b6b9

* commit 'd34718b6b95086c34b4813525e6000064460e3a1':
  Updated removeActiveAdmin documentation

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

@@ -1059,6 +1059,9 @@ public class DevicePolicyManager {
      * by the application that owns the administration component; if you
      * try to remove someone else's component, a security exception will be
      * thrown.
+     *
+     * <p>Note that the operation is not synchronous and the admin might still be active (as
+     * indicated by {@link #getActiveAdmins()}) by the time this method returns.
      */
     public void removeActiveAdmin(@NonNull ComponentName admin) {
         if (mService != null) {