[Sync] Propagate XMPP auth errors to SyncNotifierObservers

sync/notifier/push_client_channel_unittest.cc

Index: sync/notifier/push_client_channel_unittest.cc
diff --git a/sync/notifier/push_client_channel_unittest.cc b/sync/notifier/push_client_channel_unittest.cc
index e179109b3d31495834e4e626117475374dcc4878..c5ccad64c3a3b9e9b6a7355e3a272c64207d08d8 100644
--- a/sync/notifier/push_client_channel_unittest.cc
+++ b/sync/notifier/push_client_channel_unittest.cc
@@ -151,13 +151,21 @@ TEST_F(PushClientChannelTest, SendMessage) {
           expected_notification));
 }
 
-// Simulate notification state changes on the push client.  It should
+// Simulate push client state changes on the push client.  It should
 // propagate to the channel.
-TEST_F(PushClientChannelTest, OnNotificationStateChange) {
+TEST_F(PushClientChannelTest, OnPushClientStateChange) {
   EXPECT_FALSE(connected_);
-  fake_push_client_->SimulateNotificationStateChange(true);
+  fake_push_client_->SimulatePushClientStateChange(
+      notifier::NOTIFICATIONS_ON);
   EXPECT_TRUE(connected_);
-  fake_push_client_->SimulateNotificationStateChange(false);
+  fake_push_client_->SimulatePushClientStateChange(
+      notifier::NOTIFICATIONS_OFF);
+  EXPECT_FALSE(connected_);
+  fake_push_client_->SimulatePushClientStateChange(
+      notifier::NOTIFICATIONS_ON);
+  EXPECT_TRUE(connected_);
+  fake_push_client_->SimulatePushClientStateChange(
+      notifier::CREDENTIALS_REJECTED);
   EXPECT_FALSE(connected_);
 }