Reduce usage of FOR_EACH_OBSERVER macro in components/

components/prefs/value_map_pref_store.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/prefs/value_map_pref_store.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/stl_util.h"
@@ skipping 14 matching lines @@
   observers_.RemoveObserver(observer);
 }
 
 bool ValueMapPrefStore::HasObservers() const {
   return observers_.might_have_observers();
 }
 
 void ValueMapPrefStore::SetValue(const std::string& key,
                                  std::unique_ptr<base::Value> value,
                                  uint32_t flags) {
-  if (prefs_.SetValue(key, std::move(value)))
-    FOR_EACH_OBSERVER(Observer, observers_, OnPrefValueChanged(key));
+  if (prefs_.SetValue(key, std::move(value))) {
+    for (Observer& observer : observers_)
+      observer.OnPrefValueChanged(key);
+  }
 }
 
 void ValueMapPrefStore::RemoveValue(const std::string& key, uint32_t flags) {
-  if (prefs_.RemoveValue(key))
-    FOR_EACH_OBSERVER(Observer, observers_, OnPrefValueChanged(key));
+  if (prefs_.RemoveValue(key)) {
+    for (Observer& observer : observers_)
+      observer.OnPrefValueChanged(key);
+  }
 }
 
 bool ValueMapPrefStore::GetMutableValue(const std::string& key,
                                         base::Value** value) {
   return prefs_.GetValue(key, value);
 }
 
 void ValueMapPrefStore::ReportValueChanged(const std::string& key,
                                            uint32_t flags) {
-  FOR_EACH_OBSERVER(Observer, observers_, OnPrefValueChanged(key));
+  for (Observer& observer : observers_)
+    observer.OnPrefValueChanged(key);
 }
 
 void ValueMapPrefStore::SetValueSilently(const std::string& key,
                                          std::unique_ptr<base::Value> value,
                                          uint32_t flags) {
   prefs_.SetValue(key, std::move(value));
 }
 
 ValueMapPrefStore::~ValueMapPrefStore() {}
 
 void ValueMapPrefStore::NotifyInitializationCompleted() {
-  FOR_EACH_OBSERVER(Observer, observers_, OnInitializationCompleted(true));
+  for (Observer& observer : observers_)
+    observer.OnInitializationCompleted(true);
 }