[Sync] Fix race condition with notification startup

sync/notifier/chrome_invalidation_client.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/chrome_invalidation_client.h"
 
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
@@ skipping 85 matching lines @@
 
 void ChromeInvalidationClient::UpdateCredentials(
     const std::string& email, const std::string& token) {
   DCHECK(CalledOnValidThread());
   chrome_system_resources_.network()->UpdateCredentials(email, token);
 }
 
 void ChromeInvalidationClient::RegisterIds(const ObjectIdSet& ids) {
   DCHECK(CalledOnValidThread());
   registered_ids_ = ids;
-  if (GetState() == NO_NOTIFICATION_ERROR && registration_manager_.get()) {
+  // |ticl_state_| can go to NO_NOTIFICATION_ERROR even without a
+  // working XMPP connection (as observed by us), so check it instead
+  // of GetState() (see http://crbug.com/139424).
+  if (ticl_state_ == NO_NOTIFICATION_ERROR && registration_manager_.get()) {
     registration_manager_->SetRegisteredIds(registered_ids_);
   }
   // TODO(akalin): Clear invalidation versions for unregistered types.
 }
 
 void ChromeInvalidationClient::Ready(
     invalidation::InvalidationClient* client) {
   ticl_state_ = NO_NOTIFICATION_ERROR;
   EmitStateChange();
   registration_manager_->SetRegisteredIds(registered_ids_);
@@ skipping 212 matching lines @@
   EmitStateChange();
 }
 
 void ChromeInvalidationClient::OnIncomingNotification(
     const notifier::Notification& notification) {
   DCHECK(CalledOnValidThread());
   // Do nothing, since this is already handled by |invalidation_client_|.
 }
 
 }  // namespace syncer