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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_COMMON_PREF_STORE_H_ | 5 #ifndef CHROME_COMMON_PREF_STORE_H_ |
6 #define CHROME_COMMON_PREF_STORE_H_ | 6 #define CHROME_COMMON_PREF_STORE_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <string> | 9 #include <string> |
10 | 10 |
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43 }; | 43 }; |
44 | 44 |
45 PrefStore() {} | 45 PrefStore() {} |
46 virtual ~PrefStore() {} | 46 virtual ~PrefStore() {} |
47 | 47 |
48 // Add and remove observers. | 48 // Add and remove observers. |
49 virtual void AddObserver(Observer* observer) {} | 49 virtual void AddObserver(Observer* observer) {} |
50 virtual void RemoveObserver(Observer* observer) {} | 50 virtual void RemoveObserver(Observer* observer) {} |
51 | 51 |
52 // Whether the store has completed all asynchronous initialization. | 52 // Whether the store has completed all asynchronous initialization. |
53 virtual bool IsInitializationComplete() const { return true; } | 53 virtual bool IsInitializationComplete() const; |
54 | 54 |
55 // Get the value for a given preference |key| and stores it in |result|. | 55 // Get the value for a given preference |key| and stores it in |result|. |
56 // |result| is only modified if the return value is READ_OK. Ownership of the | 56 // |result| is only modified if the return value is READ_OK. Ownership of the |
57 // |result| value remains with the PrefStore. | 57 // |result| value remains with the PrefStore. |
58 virtual ReadResult GetValue(const std::string& key, Value** result) const = 0; | 58 virtual ReadResult GetValue(const std::string& key, Value** result) const = 0; |
59 | 59 |
60 DISALLOW_COPY_AND_ASSIGN(PrefStore); | 60 DISALLOW_COPY_AND_ASSIGN(PrefStore); |
61 }; | 61 }; |
62 | 62 |
63 #endif // CHROME_COMMON_PREF_STORE_H_ | 63 #endif // CHROME_COMMON_PREF_STORE_H_ |
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