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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 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 BASE_PREFS_WRITEABLE_PREF_STORE_H_ | 5 #ifndef COMPONENTS_PREFS_WRITEABLE_PREF_STORE_H_ |
6 #define BASE_PREFS_WRITEABLE_PREF_STORE_H_ | 6 #define COMPONENTS_PREFS_WRITEABLE_PREF_STORE_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <string> | 10 #include <string> |
11 | 11 |
12 #include "base/macros.h" | 12 #include "base/macros.h" |
13 #include "base/memory/scoped_ptr.h" | 13 #include "base/memory/scoped_ptr.h" |
14 #include "components/prefs/pref_store.h" | 14 #include "components/prefs/pref_store.h" |
15 | 15 |
16 namespace base { | 16 namespace base { |
17 class Value; | 17 class Value; |
18 } | 18 } |
19 | 19 |
20 // A pref store that can be written to as well as read from. | 20 // A pref store that can be written to as well as read from. |
21 class BASE_PREFS_EXPORT WriteablePrefStore : public PrefStore { | 21 class COMPONENTS_PREFS_EXPORT WriteablePrefStore : public PrefStore { |
22 public: | 22 public: |
23 // PrefWriteFlags can be used to change the way a pref will be written to | 23 // PrefWriteFlags can be used to change the way a pref will be written to |
24 // storage. | 24 // storage. |
25 enum PrefWriteFlags : uint32_t { | 25 enum PrefWriteFlags : uint32_t { |
26 // No flags are specified. | 26 // No flags are specified. |
27 DEFAULT_PREF_WRITE_FLAGS = 0, | 27 DEFAULT_PREF_WRITE_FLAGS = 0, |
28 | 28 |
29 // This marks the pref as "lossy". There is no strict time guarantee on when | 29 // This marks the pref as "lossy". There is no strict time guarantee on when |
30 // a lossy pref will be persisted to permanent storage when it is modified. | 30 // a lossy pref will be persisted to permanent storage when it is modified. |
31 LOSSY_PREF_WRITE_FLAG = 1 << 1 | 31 LOSSY_PREF_WRITE_FLAG = 1 << 1 |
(...skipping 30 matching lines...) Expand all Loading... |
62 scoped_ptr<base::Value> value, | 62 scoped_ptr<base::Value> value, |
63 uint32_t flags) = 0; | 63 uint32_t flags) = 0; |
64 | 64 |
65 protected: | 65 protected: |
66 ~WriteablePrefStore() override {} | 66 ~WriteablePrefStore() override {} |
67 | 67 |
68 private: | 68 private: |
69 DISALLOW_COPY_AND_ASSIGN(WriteablePrefStore); | 69 DISALLOW_COPY_AND_ASSIGN(WriteablePrefStore); |
70 }; | 70 }; |
71 | 71 |
72 #endif // BASE_PREFS_WRITEABLE_PREF_STORE_H_ | 72 #endif // COMPONENTS_PREFS_WRITEABLE_PREF_STORE_H_ |
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