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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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_SYNC_DRIVER_OFFSET_TAB_MATCHER_H_ | 5 #ifndef COMPONENTS_SYNC_DRIVER_OFFSET_TAB_MATCHER_H_ |
6 #define COMPONENTS_SYNC_DRIVER_OFFSET_TAB_MATCHER_H_ | 6 #define COMPONENTS_SYNC_DRIVER_OFFSET_TAB_MATCHER_H_ |
7 | 7 |
8 #include "components/sessions/session_types.h" | 8 #include "components/sessions/core/session_types.h" |
9 #include "components/sync_driver/revisit/page_equality.h" | 9 #include "components/sync_driver/revisit/page_equality.h" |
10 #include "components/sync_driver/revisit/page_visit_observer.h" | 10 #include "components/sync_driver/revisit/page_visit_observer.h" |
11 | 11 |
12 namespace sync_driver { | 12 namespace sync_driver { |
13 | 13 |
14 // This class looks for tabs that have matching pages that are not the current | 14 // This class looks for tabs that have matching pages that are not the current |
15 // navigation entry. This corresponds to the pages you would arrive at if you | 15 // navigation entry. This corresponds to the pages you would arrive at if you |
16 // pressed the forward/backwards buttons. The goal is to emit metrics for the | 16 // pressed the forward/backwards buttons. The goal is to emit metrics for the |
17 // most recent/current entry. So to break ties of multiple entries that match, | 17 // most recent/current entry. So to break ties of multiple entries that match, |
18 // first the timestamp on the tab is used, followed by the index of the entry. | 18 // first the timestamp on the tab is used, followed by the index of the entry. |
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31 const sessions::SessionTab* best_tab_ = nullptr; | 31 const sessions::SessionTab* best_tab_ = nullptr; |
32 // Invalid while best_tab_ is nullptr. | 32 // Invalid while best_tab_ is nullptr. |
33 int best_offset_ = 0; | 33 int best_offset_ = 0; |
34 | 34 |
35 DISALLOW_COPY_AND_ASSIGN(OffsetTabMatcher); | 35 DISALLOW_COPY_AND_ASSIGN(OffsetTabMatcher); |
36 }; | 36 }; |
37 | 37 |
38 } // namespace sync_driver | 38 } // namespace sync_driver |
39 | 39 |
40 #endif // COMPONENTS_SYNC_DRIVER_OFFSET_TAB_MATCHER_H_ | 40 #endif // COMPONENTS_SYNC_DRIVER_OFFSET_TAB_MATCHER_H_ |
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