Remove FOR_EACH_OBSERVER macro usage in chrome/browser/ui

chrome/browser/ui/bookmarks/recently_used_folders_combo_model.cc

Index: chrome/browser/ui/bookmarks/recently_used_folders_combo_model.cc
diff --git a/chrome/browser/ui/bookmarks/recently_used_folders_combo_model.cc b/chrome/browser/ui/bookmarks/recently_used_folders_combo_model.cc
index 1c36148eb337dd22b61cff465823dc30e321f708..b490c5873aa4e0ca5d08b252c6be4286e919628b 100644
--- a/chrome/browser/ui/bookmarks/recently_used_folders_combo_model.cc
+++ b/chrome/browser/ui/bookmarks/recently_used_folders_combo_model.cc
@@ -176,8 +176,8 @@ void RecentlyUsedFoldersComboModel::OnWillRemoveBookmarks(
     }
   }
   if (changed) {
-    FOR_EACH_OBSERVER(ui::ComboboxModelObserver, observers_,
-                      OnComboboxModelChanged(this));
+    for (ui::ComboboxModelObserver& observer : observers_)
+      observer.OnComboboxModelChanged(this);
   }
 }
 
@@ -220,8 +220,8 @@ void RecentlyUsedFoldersComboModel::BookmarkAllUserNodesRemoved(
     }
   }
   if (changed) {
-    FOR_EACH_OBSERVER(ui::ComboboxModelObserver, observers_,
-                      OnComboboxModelChanged(this));
+    for (ui::ComboboxModelObserver& observer : observers_)
+      observer.OnComboboxModelChanged(this);
   }
 }