PreferencesManager

components/prefs/value_map_pref_store.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_PREFS_VALUE_MAP_PREF_STORE_H_
 #define COMPONENTS_PREFS_VALUE_MAP_PREF_STORE_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 25 matching lines @@
   void RemoveValue(const std::string& key, uint32_t flags) override;
   bool GetMutableValue(const std::string& key, base::Value** value) override;
   void ReportValueChanged(const std::string& key, uint32_t flags) override;
   void SetValueSilently(const std::string& key,
                         std::unique_ptr<base::Value> value,
                         uint32_t flags) override;
 
  protected:
   ~ValueMapPrefStore() override;
 
+  // Can be used to clear observers during shutdown.
+  void ClearObservers();
+
   // Notify observers about the initialization completed event.
   void NotifyInitializationCompleted();
 
  private:
   PrefValueMap prefs_;
 
   base::ObserverList<PrefStore::Observer, true> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(ValueMapPrefStore);
 };
 
 #endif  // COMPONENTS_PREFS_VALUE_MAP_PREF_STORE_H_