Revert of Add PrefStore::GetValues

chrome/browser/supervised_user/supervised_user_pref_store.h

 // Copyright 2014 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 CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_PREF_STORE_H_
 #define CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_PREF_STORE_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 17 matching lines @@
 // SupervisedUserSettingsService passed in at construction.
 class SupervisedUserPrefStore : public PrefStore,
                                 public content::NotificationObserver {
  public:
   SupervisedUserPrefStore(
       SupervisedUserSettingsService* supervised_user_settings_service);
 
   // PrefStore overrides:
   bool GetValue(const std::string& key,
                 const base::Value** value) const override;
-  std::unique_ptr<base::DictionaryValue> GetValues() const override;
   void AddObserver(PrefStore::Observer* observer) override;
   void RemoveObserver(PrefStore::Observer* observer) override;
   bool HasObservers() const override;
   bool IsInitializationComplete() const override;
 
   // NotificationObserver implementation.
   void Observe(int type,
                const content::NotificationSource& src,
                const content::NotificationDetails& details) override;
 
  private:
   ~SupervisedUserPrefStore() override;
 
   void OnNewSettingsAvailable(const base::DictionaryValue* settings);
 
   std::unique_ptr<
       base::CallbackList<void(const base::DictionaryValue*)>::Subscription>
       user_settings_subscription_;
   content::NotificationRegistrar unsubscriber_registrar_;
 
   std::unique_ptr<PrefValueMap> prefs_;
 
   base::ObserverList<PrefStore::Observer, true> observers_;
 };
 
 #endif  // CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_PREF_STORE_H_