chrome/browser/prefs/tracked/dictionary_hash_store_contents.h

   1 // Copyright 2014 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_TRACKED_DICTIONARY_HASH_STORE_CONTENTS_H_
   6 #define CHROME_BROWSER_PREFS_TRACKED_DICTIONARY_HASH_STORE_CONTENTS_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "base/macros.h"
  10 #include "chrome/browser/prefs/tracked/hash_store_contents.h"
  11
  12 namespace base {
  13 class DictionaryValue;
  14 }  // namespace base
  15
  16 namespace user_prefs {
  17 class PrefRegistrySyncable;
  18 }  // namespace user_prefs
  19
  20 // Implements HashStoreContents by storing MACs in a DictionaryValue. The
  21 // DictionaryValue is presumed to be the contents of a PrefStore.
  22 // RegisterProfilePrefs() may be used to register all of the preferences used by
  23 // this object.
  24 class DictionaryHashStoreContents : public HashStoreContents {
  25  public:
  26   // Constructs a DictionaryHashStoreContents that reads from and writes to
  27   // |storage|.
  28   explicit DictionaryHashStoreContents(base::DictionaryValue* storage);
  29
  30   // Registers required preferences.
  31   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
  32
  33   // HashStoreContents implementation
  34   std::string hash_store_id() const override;
  35   void Reset() override;
  36   bool IsInitialized() const override;
  37   const base::DictionaryValue* GetContents() const override;
  38   scoped_ptr<MutableDictionary> GetMutableContents() override;
  39   std::string GetSuperMac() const override;
  40   void SetSuperMac(const std::string& super_mac) override;
  41
  42  private:
  43   base::DictionaryValue* storage_;
  44
  45   DISALLOW_COPY_AND_ASSIGN(DictionaryHashStoreContents);
  46 };
  47
  48 #endif  // CHROME_BROWSER_PREFS_TRACKED_DICTIONARY_HASH_STORE_CONTENTS_H_