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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_PREFS_DEFAULT_PREF_STORE_H_
      6 #define CHROME_BROWSER_PREFS_DEFAULT_PREF_STORE_H_
      7 #pragma once
      8 
      9 #include <string>
     10 
     11 #include "base/values.h"
     12 #include "chrome/browser/prefs/value_map_pref_store.h"
     13 
     14 // This PrefStore keeps track of default preference values set when a
     15 // preference is registered with the PrefService.
     16 class DefaultPrefStore : public ValueMapPrefStore {
     17  public:
     18   DefaultPrefStore();
     19   virtual ~DefaultPrefStore();
     20 
     21   // Stores a new |value| for |key|. Assumes ownership of |value|.
     22   void SetDefaultValue(const std::string& key, Value* value);
     23 
     24   // Returns the registered type for |key| or Value::TYPE_NULL if the |key|
     25   // has not been registered.
     26   Value::ValueType GetType(const std::string& key) const;
     27 
     28  private:
     29   DISALLOW_COPY_AND_ASSIGN(DefaultPrefStore);
     30 };
     31 
     32 #endif  // CHROME_BROWSER_PREFS_DEFAULT_PREF_STORE_H_
     33