am 79a41531: Merge "In tests tearDown() method, ignore IllegalArgumentException from unregisterReceiver method. Sometimes the tests may have failed to register a receiver. In such cases, trying to unregister it later on in tearDown() is unnecessary and so ignore Illeg

* commit '79a4153198c3db73071aba2037217305e4dde7c4':
  In tests tearDown() method, ignore IllegalArgumentException from unregisterReceiver method. Sometimes the tests may have failed to register a receiver. In such cases, trying to unregister it later on in tearDown() is unnecessary and so ignore IllegalArgumentException from unregisterReceiver.