Make push messaging not create InvalidationService for login and guest

chrome/browser/sync/glue/sync_backend_host_impl.cc

 // Copyright 2013 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 "chrome/browser/sync/glue/sync_backend_host_impl.h"
 
 #include "base/command_line.h"
+#include "base/logging.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/invalidation/invalidation_service.h"
 #include "chrome/browser/invalidation/invalidation_service_factory.h"
 #include "chrome/browser/network_time/network_time_tracker.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/glue/sync_backend_host_core.h"
 #include "chrome/browser/sync/glue/sync_backend_registrar.h"
 #include "chrome/common/chrome_switches.h"
 #include "components/sync_driver/sync_frontend.h"
 #include "components/sync_driver/sync_prefs.h"
@@ skipping 34 matching lines @@
       profile_(profile),
       name_(name),
       initialized_(false),
       sync_prefs_(sync_prefs),
       frontend_(NULL),
       cached_passphrase_type_(syncer::IMPLICIT_PASSPHRASE),
       invalidator_(
           invalidation::InvalidationServiceFactory::GetForProfile(profile)),
       invalidation_handler_registered_(false),
       weak_ptr_factory_(this) {
+  CHECK(invalidator_);
   core_ = new SyncBackendHostCore(
       name_,
       profile_->GetPath().Append(kSyncDataFolderName),
       sync_prefs_->HasSyncSetupCompleted(),
       weak_ptr_factory_.GetWeakPtr());
 }
 
 SyncBackendHostImpl::~SyncBackendHostImpl() {
   DCHECK(!core_.get() && !frontend_) << "Must call Shutdown before destructor.";
   DCHECK(!registrar_.get());
@@ skipping 702 matching lines @@
 base::MessageLoop* SyncBackendHostImpl::GetSyncLoopForTesting() {
   return registrar_->sync_thread()->message_loop();
 }
 
 }  // namespace browser_sync
 
 #undef SDVLOG
 
 #undef SLOG