Remove usage of FOR_EACH_OBSERVER macro in components/history

components/history/core/browser/top_sites.cc

Index: components/history/core/browser/top_sites.cc
diff --git a/components/history/core/browser/top_sites.cc b/components/history/core/browser/top_sites.cc
index 987d86b6ac0d00254427614f33e151c3873ad4a1..5acf6dbf218110aa728538285f6c6985847dde51 100644
--- a/components/history/core/browser/top_sites.cc
+++ b/components/history/core/browser/top_sites.cc
@@ -39,13 +39,14 @@ void TopSites::RemoveObserver(TopSitesObserver* observer) {
 }
 
 void TopSites::NotifyTopSitesLoaded() {
-  FOR_EACH_OBSERVER(TopSitesObserver, observer_list_, TopSitesLoaded(this));
+  for (TopSitesObserver& observer : observer_list_)
+    observer.TopSitesLoaded(this);
 }
 
 void TopSites::NotifyTopSitesChanged(
     const TopSitesObserver::ChangeReason reason) {
-  FOR_EACH_OBSERVER(TopSitesObserver, observer_list_,
-                    TopSitesChanged(this, reason));
+  for (TopSitesObserver& observer : observer_list_)
+    observer.TopSitesChanged(this, reason);
 }
 
 }  // namespace history