[Sync] Propagate XMPP auth errors to SyncNotifierObservers

sync/tools/sync_listen_notifications.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 <cstdio>
 #include <string>
 
 #include "base/at_exit.h"
 #include "base/base64.h"
 #include "base/command_line.h"
@@ skipping 33 matching lines @@
     for (syncable::ModelTypePayloadMap::const_iterator it =
              type_payloads.begin(); it != type_payloads.end(); ++it) {
       LOG(INFO) << (source == sync_notifier::REMOTE_NOTIFICATION ?
                     "Remote" : "Local")
                 << " Notification: type = "
                 << syncable::ModelTypeToString(it->first)
                 << ", payload = " << it->second;
     }
   }
 
-  virtual void OnNotificationStateChange(
-      bool notifications_enabled) OVERRIDE {
-    LOG(INFO) << "Notifications enabled: " << notifications_enabled;
+  virtual void OnSyncNotifierStateChange(
+      sync_notifier::SyncNotifierState sync_notifier_state) OVERRIDE {
+    LOG(INFO) << "SyncNotifierState: "
+              << sync_notifier::SyncNotifierStateToString(sync_notifier_state);
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(NotificationPrinter);
 };
 
 class NullInvalidationStateTracker
     : public base::SupportsWeakPtr<NullInvalidationStateTracker>,
       public sync_notifier::InvalidationStateTracker {
  public:
@@ skipping 156 matching lines @@
   sync_notifier->UpdateCredentials(email, token);
   // Listen for notifications for all known types.
   sync_notifier->UpdateEnabledTypes(syncable::ModelTypeSet::All());
 
   ui_loop.Run();
 
   sync_notifier->RemoveObserver(&notification_printer);
   io_thread.Stop();
   return 0;
 }