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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 COMPONENTS_PREFS_PERSISTENT_PREF_STORE_H_ | 5 #ifndef BASE_PREFS_PERSISTENT_PREF_STORE_H_ |
6 #define COMPONENTS_PREFS_PERSISTENT_PREF_STORE_H_ | 6 #define BASE_PREFS_PERSISTENT_PREF_STORE_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "components/prefs/base_prefs_export.h" | 10 #include "components/prefs/base_prefs_export.h" |
11 #include "components/prefs/writeable_pref_store.h" | 11 #include "components/prefs/writeable_pref_store.h" |
12 | 12 |
13 // This interface is complementary to the PrefStore interface, declaring | 13 // This interface is complementary to the PrefStore interface, declaring |
14 // additional functionality that adds support for setting values and persisting | 14 // additional functionality that adds support for setting values and persisting |
15 // the data to some backing store. | 15 // the data to some backing store. |
16 class COMPONENTS_PREFS_EXPORT PersistentPrefStore : public WriteablePrefStore { | 16 class BASE_PREFS_EXPORT PersistentPrefStore : public WriteablePrefStore { |
17 public: | 17 public: |
18 // Unique integer code for each type of error so we can report them | 18 // Unique integer code for each type of error so we can report them |
19 // distinctly in a histogram. | 19 // distinctly in a histogram. |
20 // NOTE: Don't change the explicit values of the enums as it will change the | 20 // NOTE: Don't change the explicit values of the enums as it will change the |
21 // server's meaning of the histogram. | 21 // server's meaning of the histogram. |
22 enum PrefReadError { | 22 enum PrefReadError { |
23 PREF_READ_ERROR_NONE = 0, | 23 PREF_READ_ERROR_NONE = 0, |
24 PREF_READ_ERROR_JSON_PARSE = 1, | 24 PREF_READ_ERROR_JSON_PARSE = 1, |
25 PREF_READ_ERROR_JSON_TYPE = 2, | 25 PREF_READ_ERROR_JSON_TYPE = 2, |
26 PREF_READ_ERROR_ACCESS_DENIED = 3, | 26 PREF_READ_ERROR_ACCESS_DENIED = 3, |
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67 // Schedule a write if there is any lossy data pending. Unlike | 67 // Schedule a write if there is any lossy data pending. Unlike |
68 // CommitPendingWrite() this does not immediately sync to disk, instead it | 68 // CommitPendingWrite() this does not immediately sync to disk, instead it |
69 // triggers an eventual write if there is lossy data pending and if there | 69 // triggers an eventual write if there is lossy data pending and if there |
70 // isn't one scheduled already. | 70 // isn't one scheduled already. |
71 virtual void SchedulePendingLossyWrites() = 0; | 71 virtual void SchedulePendingLossyWrites() = 0; |
72 | 72 |
73 protected: | 73 protected: |
74 ~PersistentPrefStore() override {} | 74 ~PersistentPrefStore() override {} |
75 }; | 75 }; |
76 | 76 |
77 #endif // COMPONENTS_PREFS_PERSISTENT_PREF_STORE_H_ | 77 #endif // BASE_PREFS_PERSISTENT_PREF_STORE_H_ |
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