Remove usage of FOR_EACH_OBSERVER macro in components/sync

components/sync/engine_impl/cycle/sync_cycle.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/sync/engine_impl/cycle/sync_cycle.h"
 
 #include <algorithm>
 #include <iterator>
 
 #include "base/logging.h"
@@ skipping 47 matching lines @@
   return snapshot;
 }
 
 void SyncCycle::SendSyncCycleEndEventNotification(
     sync_pb::GetUpdatesCallerInfo::GetUpdatesSource source) {
   SyncCycleEvent event(SyncCycleEvent::SYNC_CYCLE_ENDED);
   event.snapshot = TakeSnapshotWithSource(source);
 
   DVLOG(1) << "Sending cycle end event with snapshot: "
            << event.snapshot.ToString();
-  FOR_EACH_OBSERVER(SyncEngineEventListener, *(context_->listeners()),
-                    OnSyncCycleEvent(event));
+  for (auto& observer : *context_->listeners())
+    observer.OnSyncCycleEvent(event);
 }
 
 void SyncCycle::SendEventNotification(SyncCycleEvent::EventCause cause) {
   SyncCycleEvent event(cause);
   event.snapshot = TakeSnapshot();
 
   DVLOG(1) << "Sending event with snapshot: " << event.snapshot.ToString();
-  FOR_EACH_OBSERVER(SyncEngineEventListener, *(context_->listeners()),
-                    OnSyncCycleEvent(event));
+  for (auto& observer : *context_->listeners())
+    observer.OnSyncCycleEvent(event);
 }
 
 void SyncCycle::SendProtocolEvent(const ProtocolEvent& event) {
-  FOR_EACH_OBSERVER(SyncEngineEventListener, *(context_->listeners()),
-                    OnProtocolEvent(event));
+  for (auto& observer : *context_->listeners())
+    observer.OnProtocolEvent(event);
 }
 
 }  // namespace syncer