Remove usage of FOR_EACH_OBSERVER macro in components/

components/cronet/android/cronet_in_memory_pref_store.cc

Index: components/cronet/android/cronet_in_memory_pref_store.cc
diff --git a/components/cronet/android/cronet_in_memory_pref_store.cc b/components/cronet/android/cronet_in_memory_pref_store.cc
index d1a5af78244fcf9734fc8b4693f2c43e836dad80..55362cf8f88e522704bea19be2630a4b9e62d328 100644
--- a/components/cronet/android/cronet_in_memory_pref_store.cc
+++ b/components/cronet/android/cronet_in_memory_pref_store.cc
@@ -79,6 +79,7 @@ void CronetInMemoryPrefStore::ReadPrefsAsync(
 
 void CronetInMemoryPrefStore::ReportValueChanged(const std::string& key,
                                                  uint32_t flags) {
-  FOR_EACH_OBSERVER(Observer, observers_, OnPrefValueChanged(key));
+  for (Observer& observer : observers_)
+    observer.OnPrefValueChanged(key);
 }