tree e54d770342bb30a8e62cceb72f06c5b217ae812a
parent 23703f16f816d4212e5a95c101a851660c095f24
author Bryan Mawhinney <bryanmawhinney@google.com> 1253800225 +0100
committer Bryan Mawhinney <bryanmawhinney@google.com> 1253800225 +0100

Make removeOnAccountsUpdateListener cope with null handlers.

Previously, if callers registered OnAccountsUpdateListeners with a null handler,
removeOnAccountsUpdateListener would fail attempting to remove the listener.

Change-Id: If9906d3711f816e60c4b491b7f33671f089ac00f