chrome/browser/prefs/tracked/tracked_split_preference.h - Issue 1227973003: Componentize //chrome/browser/prefs/tracked.

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Side by Side Diff: chrome/browser/prefs/tracked/tracked_split_preference.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.

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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