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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 COMPONENTS_USER_PREFS_TRACKED_INTERCEPTABLE_PREF_FILTER_H_ | 5 #ifndef COMPONENTS_USER_PREFS_TRACKED_INTERCEPTABLE_PREF_FILTER_H_ |
6 #define COMPONENTS_USER_PREFS_TRACKED_INTERCEPTABLE_PREF_FILTER_H_ | 6 #define COMPONENTS_USER_PREFS_TRACKED_INTERCEPTABLE_PREF_FILTER_H_ |
7 | 7 |
| 8 #include <memory> |
| 9 |
8 #include "base/callback.h" | 10 #include "base/callback.h" |
9 #include "base/memory/scoped_ptr.h" | |
10 #include "base/memory/weak_ptr.h" | 11 #include "base/memory/weak_ptr.h" |
11 #include "base/values.h" | 12 #include "base/values.h" |
12 #include "components/prefs/pref_filter.h" | 13 #include "components/prefs/pref_filter.h" |
13 | 14 |
14 // A partial implementation of a PrefFilter whose FilterOnLoad call may be | 15 // A partial implementation of a PrefFilter whose FilterOnLoad call may be |
15 // intercepted by a FilterOnLoadInterceptor. Implementations of | 16 // intercepted by a FilterOnLoadInterceptor. Implementations of |
16 // InterceptablePrefFilter are expected to override FinalizeFilterOnLoad rather | 17 // InterceptablePrefFilter are expected to override FinalizeFilterOnLoad rather |
17 // than re-overriding FilterOnLoad. | 18 // than re-overriding FilterOnLoad. |
18 class InterceptablePrefFilter | 19 class InterceptablePrefFilter |
19 : public PrefFilter, | 20 : public PrefFilter, |
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58 std::unique_ptr<base::DictionaryValue> pref_store_contents, | 59 std::unique_ptr<base::DictionaryValue> pref_store_contents, |
59 bool prefs_altered) = 0; | 60 bool prefs_altered) = 0; |
60 | 61 |
61 // Callback to be invoked only once (and subsequently reset) on the next | 62 // Callback to be invoked only once (and subsequently reset) on the next |
62 // FilterOnLoad event. It will be allowed to modify the |prefs| handed to | 63 // FilterOnLoad event. It will be allowed to modify the |prefs| handed to |
63 // FilterOnLoad before handing them back to this PrefHashFilter. | 64 // FilterOnLoad before handing them back to this PrefHashFilter. |
64 FilterOnLoadInterceptor filter_on_load_interceptor_; | 65 FilterOnLoadInterceptor filter_on_load_interceptor_; |
65 }; | 66 }; |
66 | 67 |
67 #endif // COMPONENTS_USER_PREFS_TRACKED_INTERCEPTABLE_PREF_FILTER_H_ | 68 #endif // COMPONENTS_USER_PREFS_TRACKED_INTERCEPTABLE_PREF_FILTER_H_ |
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