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Side by Side Diff: components/user_prefs/tracked/tracked_preference_helper.h

Issue 1227973003: Componentize //chrome/browser/prefs/tracked. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebased Created 5 years, 4 months ago
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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 CHROME_BROWSER_PREFS_TRACKED_TRACKED_PREFERENCE_HELPER_H_ 5 #ifndef COMPONENTS_USER_PREFS_TRACKED_TRACKED_PREFERENCE_HELPER_H_
6 #define CHROME_BROWSER_PREFS_TRACKED_TRACKED_PREFERENCE_HELPER_H_ 6 #define COMPONENTS_USER_PREFS_TRACKED_TRACKED_PREFERENCE_HELPER_H_
7 7
8 #include <string> 8 #include <string>
9 9
10 #include "base/macros.h" 10 #include "base/macros.h"
11 #include "chrome/browser/prefs/tracked/pref_hash_filter.h" 11 #include "components/user_prefs/tracked/pref_hash_filter.h"
12 #include "chrome/browser/prefs/tracked/pref_hash_store_transaction.h" 12 #include "components/user_prefs/tracked/pref_hash_store_transaction.h"
13 13
14 // A TrackedPreferenceHelper is a helper class for TrackedPreference which 14 // A TrackedPreferenceHelper is a helper class for TrackedPreference which
15 // handles decision making and reporting for TrackedPreference's 15 // handles decision making and reporting for TrackedPreference's
16 // implementations. 16 // implementations.
17 class TrackedPreferenceHelper { 17 class TrackedPreferenceHelper {
18 public: 18 public:
19 enum ResetAction { 19 enum ResetAction {
20 DONT_RESET, 20 DONT_RESET,
21 // WANTED_RESET is reported when DO_RESET would have been reported but the 21 // WANTED_RESET is reported when DO_RESET would have been reported but the
22 // current |enforcement_level| doesn't allow a reset for the detected state. 22 // current |enforcement_level| doesn't allow a reset for the detected state.
23 WANTED_RESET, 23 WANTED_RESET,
24 DO_RESET, 24 DO_RESET,
25 }; 25 };
26 26
27 TrackedPreferenceHelper(const std::string& pref_path, 27 TrackedPreferenceHelper(const std::string& pref_path,
28 size_t reporting_id, 28 size_t reporting_id,
29 size_t reporting_ids_count, 29 size_t reporting_ids_count,
30 PrefHashFilter::EnforcementLevel enforcement_level, 30 PrefHashFilter::EnforcementLevel enforcement_level,
31 PrefHashFilter::ValueType value_type); 31 PrefHashFilter::ValueType value_type);
32 32
33 // Returns a ResetAction stating whether a reset is desired (DO_RESET) or not 33 // Returns a ResetAction stating whether a reset is desired (DO_RESET) or not
34 // (DONT_RESET) based on observing |value_state|. Can also return WANTED_RESET 34 // (DONT_RESET) based on observing |value_state|. Can also return WANTED_RESET
35 // if a reset would have been desired but the current |enforcement_level| 35 // if a reset would have been desired but the current |enforcement_level|
36 // doesn't allow it. 36 // doesn't allow it.
37 ResetAction GetAction( 37 ResetAction GetAction(PrefHashStoreTransaction::ValueState value_state) const;
38 PrefHashStoreTransaction::ValueState value_state) const;
39 38
40 // Returns true if the preference value may contain personal information. 39 // Returns true if the preference value may contain personal information.
41 bool IsPersonal() const; 40 bool IsPersonal() const;
42 41
43 // Reports |value_state| via UMA under |reporting_id_|. 42 // Reports |value_state| via UMA under |reporting_id_|.
44 void ReportValidationResult( 43 void ReportValidationResult(
45 PrefHashStoreTransaction::ValueState value_state) const; 44 PrefHashStoreTransaction::ValueState value_state) const;
46 45
47 // Reports |reset_action| via UMA under |reporting_id_|. 46 // Reports |reset_action| via UMA under |reporting_id_|.
48 void ReportAction(ResetAction reset_action) const; 47 void ReportAction(ResetAction reset_action) const;
49 48
50 // Reports, via UMA, the |count| of split preference entries that were 49 // Reports, via UMA, the |count| of split preference entries that were
51 // considered invalid in a CHANGED event. 50 // considered invalid in a CHANGED event.
52 void ReportSplitPreferenceChangedCount(size_t count) const; 51 void ReportSplitPreferenceChangedCount(size_t count) const;
53 52
54 private: 53 private:
55 const std::string pref_path_; 54 const std::string pref_path_;
56 55
57 const size_t reporting_id_; 56 const size_t reporting_id_;
58 const size_t reporting_ids_count_; 57 const size_t reporting_ids_count_;
59 58
60 // Deny setting changes and hash seeding/migration. 59 // Deny setting changes and hash seeding/migration.
61 const bool enforce_; 60 const bool enforce_;
62 61
63 const bool personal_; 62 const bool personal_;
64 63
65 DISALLOW_COPY_AND_ASSIGN(TrackedPreferenceHelper); 64 DISALLOW_COPY_AND_ASSIGN(TrackedPreferenceHelper);
66 }; 65 };
67 66
68 #endif // CHROME_BROWSER_PREFS_TRACKED_TRACKED_PREFERENCE_HELPER_H_ 67 #endif // COMPONENTS_USER_PREFS_TRACKED_TRACKED_PREFERENCE_HELPER_H_
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