PreferencesManager

components/prefs/value_map_pref_store.cc

Index: components/prefs/value_map_pref_store.cc
diff --git a/components/prefs/value_map_pref_store.cc b/components/prefs/value_map_pref_store.cc
index 8b828b10d5c628cdc6b2bb9333269e0746554046..5feaccc364bfc5f619534079a9fec5a7cd00d4d7 100644
--- a/components/prefs/value_map_pref_store.cc
+++ b/components/prefs/value_map_pref_store.cc
@@ -64,6 +64,10 @@ void ValueMapPrefStore::SetValueSilently(const std::string& key,
 
 ValueMapPrefStore::~ValueMapPrefStore() {}
 
+void ValueMapPrefStore::ClearObservers() {
+  observers_.Clear();
+}
+
 void ValueMapPrefStore::NotifyInitializationCompleted() {
   for (Observer& observer : observers_)
     observer.OnInitializationCompleted(true);