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Side by Side Diff: chrome/browser/extensions/settings/policy_value_store.h

Issue 11747025: Run the JSON Schema Compiler's bundle compilation on JSON files. Previously it (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: fix ms release build Created 7 years, 11 months ago
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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_POLICY_VALUE_STORE_H_
6 #define CHROME_BROWSER_EXTENSIONS_SETTINGS_POLICY_VALUE_STORE_H_
7
8 #include <string>
9 #include <vector>
10
11 #include "base/compiler_specific.h"
12 #include "base/memory/ref_counted.h"
13 #include "base/memory/scoped_ptr.h"
14 #include "chrome/browser/extensions/settings/settings_observer.h"
15 #include "chrome/browser/value_store/value_store.h"
16
17 namespace policy {
18 class PolicyMap;
19 }
20
21 namespace extensions {
22
23 // A ValueStore that is backed by another, persistent ValueStore, and stores
24 // the policies for a specific extension there. This ValueStore is used to
25 // run the function of the storage.managed namespace; it's read-only for the
26 // extension. The ManagedValueStoreCache sends updated policy to this store
27 // and manages its lifetime.
28 class PolicyValueStore : public ValueStore {
29 public:
30 PolicyValueStore(const std::string& extension_id,
31 const scoped_refptr<SettingsObserverList>& observers,
32 scoped_ptr<ValueStore> delegate);
33 virtual ~PolicyValueStore();
34
35 // Stores |policy| in the persistent database represented by the |delegate_|.
36 // If |notify_if_changed| and |policy| differs from the previously persisted
37 // version, then a notification is sent to the |observers_| with a list of the
38 // changes detected.
39 void SetCurrentPolicy(const policy::PolicyMap& policy,
40 bool notify_if_changed);
41
42 // Clears all the stored data and deletes the database.
43 void DeleteStorage();
44
45 // ValueStore implementation:
46 virtual size_t GetBytesInUse(const std::string& key) OVERRIDE;
47 virtual size_t GetBytesInUse(const std::vector<std::string>& keys) OVERRIDE;
48 virtual size_t GetBytesInUse() OVERRIDE;
49 virtual ReadResult Get(const std::string& key) OVERRIDE;
50 virtual ReadResult Get(const std::vector<std::string>& keys) OVERRIDE;
51 virtual ReadResult Get() OVERRIDE;
52 virtual WriteResult Set(
53 WriteOptions options,
54 const std::string& key,
55 const base::Value& value) OVERRIDE;
56 virtual WriteResult Set(
57 WriteOptions options, const base::DictionaryValue& values) OVERRIDE;
58 virtual WriteResult Remove(const std::string& key) OVERRIDE;
59 virtual WriteResult Remove(const std::vector<std::string>& keys) OVERRIDE;
60 virtual WriteResult Clear() OVERRIDE;
61
62 // For unit tests.
63 ValueStore* delegate() { return delegate_.get(); }
64
65 private:
66 std::string extension_id_;
67 scoped_refptr<SettingsObserverList> observers_;
68 scoped_ptr<ValueStore> delegate_;
69
70 DISALLOW_COPY_AND_ASSIGN(PolicyValueStore);
71 };
72
73 } // namespace extensions
74
75 #endif // CHROME_BROWSER_EXTENSIONS_SETTINGS_POLICY_VALUE_STORE_H_
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