Remove usage of FOR_EACH_OBSERVER macro in components/

components/content_settings/core/browser/content_settings_observable_provider.cc

Index: components/content_settings/core/browser/content_settings_observable_provider.cc
diff --git a/components/content_settings/core/browser/content_settings_observable_provider.cc b/components/content_settings/core/browser/content_settings_observable_provider.cc
index edda022d3c47e14084671d31a8ee208cce7648c1..b4a36212653aa275fa022655ac8d6c5e0a89d8f0 100644
--- a/components/content_settings/core/browser/content_settings_observable_provider.cc
+++ b/components/content_settings/core/browser/content_settings_observable_provider.cc
@@ -29,13 +29,10 @@ void ObservableProvider::NotifyObservers(
     const ContentSettingsPattern& secondary_pattern,
     ContentSettingsType content_type,
     const std::string& resource_identifier) {
-  FOR_EACH_OBSERVER(Observer,
-                    observer_list_,
-                    OnContentSettingChanged(
-                        primary_pattern,
-                        secondary_pattern,
-                        content_type,
-                        resource_identifier));
+  for (Observer& observer : observer_list_) {
+    observer.OnContentSettingChanged(primary_pattern, secondary_pattern,
+                                     content_type, resource_identifier);
+  }
 }
 
 void ObservableProvider::RemoveAllObservers() {