[Sync] Propagate XMPP auth errors to SyncNotifierObservers

sync/notifier/push_client_channel_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sync/notifier/push_client_channel.h"
 
 #include <cstddef>
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 133 matching lines @@
       PushClientChannel::EncodeMessageForTest(
           kMessage,
           push_client_channel_.GetServiceContextForTest(),
           push_client_channel_.GetSchedulingHashForTest());
   ASSERT_EQ(1u, fake_push_client_->sent_notifications().size());
   EXPECT_TRUE(
       fake_push_client_->sent_notifications()[0].Equals(
           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_);
 }
 
 // Simulate an incoming notification.  It should be decoded properly
 // by the channel.
 TEST_F(PushClientChannelTest, OnIncomingNotification) {
   const notifier::Notification notification =
       PushClientChannel::EncodeMessageForTest(
           kMessage, kServiceContext, kSchedulingHash);
 
@@ skipping 67 matching lines @@
         fake_push_client_->sent_notifications()[1],
         &message, &service_context, &scheduling_hash));
     EXPECT_EQ(kMessage, message);
     EXPECT_EQ(kServiceContext, service_context);
     EXPECT_EQ(kSchedulingHash, scheduling_hash);
   }
 }
 
 }  // namespace
 }  // namespace sync_notifier