Reduce usage of FOR_EACH_OBSERVER macro in components/

components/syncable_prefs/pref_model_associator.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 "components/syncable_prefs/pref_model_associator.h"
 
 #include <utility>
 
 #include "base/auto_reset.h"
 #include "base/json/json_reader.h"
@@ skipping 520 matching lines @@
   DCHECK(pref_service_ == NULL);
   pref_service_ = pref_service;
 }
 
 void PrefModelAssociator::NotifySyncedPrefObservers(const std::string& path,
                                                     bool from_sync) const {
   auto observer_iter = synced_pref_observers_.find(path);
   if (observer_iter == synced_pref_observers_.end())
     return;
   SyncedPrefObserverList* observers = observer_iter->second.get();
-  FOR_EACH_OBSERVER(SyncedPrefObserver, *observers,
-                    OnSyncedPrefChanged(path, from_sync));
+  for (auto& observer : *observers)
+    observer.OnSyncedPrefChanged(path, from_sync);
 }
 
 }  // namespace syncable_prefs