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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CHROME_BROWSER_PREFS_TRACKED_TRACKED_SPLIT_PREFERENCE_H_ | |
| 6 #define CHROME_BROWSER_PREFS_TRACKED_TRACKED_SPLIT_PREFERENCE_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/compiler_specific.h" | |
| 11 #include "base/macros.h" | |
| 12 #include "chrome/browser/prefs/tracked/pref_hash_filter.h" | |
| 13 #include "chrome/browser/prefs/tracked/tracked_preference.h" | |
| 14 #include "chrome/browser/prefs/tracked/tracked_preference_helper.h" | |
| 15 | |
| 16 class TrackedPreferenceValidationDelegate; | |
| 17 | |
| 18 // A TrackedSplitPreference must be tracking a dictionary pref. Each top-level | |
| 19 // entry in its dictionary is tracked and enforced independently. An optional | |
| 20 // delegate is notified of the status of the preference during enforcement. | |
| 21 // Note: preferences using this strategy must be kept in sync with | |
| 22 // TrackedSplitPreferences in histograms.xml. | |
| 23 class TrackedSplitPreference : public TrackedPreference { | |
| 24 public: | |
| 25 // Constructs a TrackedSplitPreference. |pref_path| must be a dictionary pref. | |
| 26 TrackedSplitPreference(const std::string& pref_path, | |
| 27 size_t reporting_id, | |
| 28 size_t reporting_ids_count, | |
| 29 PrefHashFilter::EnforcementLevel enforcement_level, | |
| 30 PrefHashFilter::ValueType value_type, | |
| 31 TrackedPreferenceValidationDelegate* delegate); | |
| 32 | |
| 33 // TrackedPreference implementation. | |
| 34 void OnNewValue(const base::Value* value, | |
| 35 PrefHashStoreTransaction* transaction) const override; | |
| 36 bool EnforceAndReport(base::DictionaryValue* pref_store_contents, | |
| 37 PrefHashStoreTransaction* transaction) const override; | |
| 38 | |
| 39 private: | |
| 40 const std::string pref_path_; | |
| 41 const TrackedPreferenceHelper helper_; | |
| 42 TrackedPreferenceValidationDelegate* delegate_; | |
| 43 | |
| 44 DISALLOW_COPY_AND_ASSIGN(TrackedSplitPreference); | |
| 45 }; | |
| 46 | |
| 47 #endif // CHROME_BROWSER_PREFS_TRACKED_TRACKED_SPLIT_PREFERENCE_H_ | |
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