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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CHROME_BROWSER_EXTENSIONS_SETTINGS_WEAK_UNLIMITED_SETTINGS_STORAGE_H_ | |
6 #define CHROME_BROWSER_EXTENSIONS_SETTINGS_WEAK_UNLIMITED_SETTINGS_STORAGE_H_ | |
7 | |
8 #include "base/compiler_specific.h" | |
9 #include "chrome/browser/value_store/value_store.h" | |
10 | |
11 namespace extensions { | |
12 | |
13 // A ValueStore decorator which makes calls through |Set| ignore quota. | |
14 // "Weak" because ownership of the delegate isn't taken; this is designed to be | |
15 // temporarily attached to storage areas. | |
16 class WeakUnlimitedSettingsStorage : public ValueStore { | |
17 public: | |
18 // Ownership of |delegate| NOT taken. | |
19 explicit WeakUnlimitedSettingsStorage(ValueStore* delegate); | |
20 | |
21 virtual ~WeakUnlimitedSettingsStorage(); | |
22 | |
23 // ValueStore implementation. | |
24 virtual size_t GetBytesInUse(const std::string& key) OVERRIDE; | |
25 virtual size_t GetBytesInUse(const std::vector<std::string>& keys) OVERRIDE; | |
26 virtual size_t GetBytesInUse() OVERRIDE; | |
27 virtual ReadResult Get(const std::string& key) OVERRIDE; | |
28 virtual ReadResult Get(const std::vector<std::string>& keys) OVERRIDE; | |
29 virtual ReadResult Get() OVERRIDE; | |
30 virtual WriteResult Set( | |
31 WriteOptions options, | |
32 const std::string& key, | |
33 const Value& value) OVERRIDE; | |
34 virtual WriteResult Set( | |
35 WriteOptions options, const DictionaryValue& values) OVERRIDE; | |
36 virtual WriteResult Remove(const std::string& key) OVERRIDE; | |
37 virtual WriteResult Remove(const std::vector<std::string>& keys) OVERRIDE; | |
38 virtual WriteResult Clear() OVERRIDE; | |
39 | |
40 private: | |
41 // The delegate storage area, NOT OWNED. | |
42 ValueStore* const delegate_; | |
43 | |
44 DISALLOW_COPY_AND_ASSIGN(WeakUnlimitedSettingsStorage); | |
45 }; | |
46 | |
47 } // namespace extensions | |
48 | |
49 #endif // CHROME_BROWSER_EXTENSIONS_SETTINGS_WEAK_UNLIMITED_SETTINGS_STORAGE_H_ | |
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