Reduce usage of FOR_EACH_OBSERVER macro in components/

components/update_client/update_client.cc

 // Copyright 2014 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 "components/update_client/update_client.h"
 
 #include <algorithm>
 #include <queue>
 #include <set>
 #include <utility>
@@ skipping 169 matching lines @@
 }
 
 void UpdateClientImpl::RemoveObserver(Observer* observer) {
   DCHECK(thread_checker_.CalledOnValidThread());
   observer_list_.RemoveObserver(observer);
 }
 
 void UpdateClientImpl::NotifyObservers(Observer::Events event,
                                        const std::string& id) {
   DCHECK(thread_checker_.CalledOnValidThread());
-  FOR_EACH_OBSERVER(Observer, observer_list_, OnEvent(event, id));
+  for (auto& observer : observer_list_)
+    observer.OnEvent(event, id);
 }
 
 bool UpdateClientImpl::GetCrxUpdateState(const std::string& id,
                                          CrxUpdateItem* update_item) const {
   return update_engine_->GetUpdateState(id, update_item);
 }
 
 bool UpdateClientImpl::IsUpdating(const std::string& id) const {
   DCHECK(thread_checker_.CalledOnValidThread());
 
@@ skipping 54 matching lines @@
   std::unique_ptr<PingManager> ping_manager(new PingManager(config));
   return new UpdateClientImpl(config, std::move(ping_manager),
                               &UpdateChecker::Create, &CrxDownloader::Create);
 }
 
 void RegisterPrefs(PrefRegistrySimple* registry) {
   PersistedData::RegisterPrefs(registry);
 }
 
 }  // namespace update_client