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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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_SPELLCHECKER_SPELLCHECK_HOST_METRICS_H_ | 5 #ifndef CHROME_BROWSER_SPELLCHECKER_SPELLCHECK_HOST_METRICS_H_ |
| 6 #define CHROME_BROWSER_SPELLCHECKER_SPELLCHECK_HOST_METRICS_H_ | 6 #define CHROME_BROWSER_SPELLCHECKER_SPELLCHECK_HOST_METRICS_H_ |
| 7 | 7 |
| 8 #include <string> | 8 #include <string> |
| 9 #include <vector> | 9 #include <vector> |
| 10 | 10 |
| 11 #include "base/hash_tables.h" | 11 #include "base/containers/hash_tables.h" |
| 12 #include "base/time.h" | 12 #include "base/time.h" |
| 13 #include "base/timer.h" | 13 #include "base/timer.h" |
| 14 | 14 |
| 15 // A helper object for recording spell-check related histograms. | 15 // A helper object for recording spell-check related histograms. |
| 16 // This class encapsulates histogram names and metrics API. | 16 // This class encapsulates histogram names and metrics API. |
| 17 // This also carries a set of counters for collecting histograms | 17 // This also carries a set of counters for collecting histograms |
| 18 // and a timer for making a periodical summary. | 18 // and a timer for making a periodical summary. |
| 19 // | 19 // |
| 20 // We expect a user of SpellCheckHost class to instantiate this object, | 20 // We expect a user of SpellCheckHost class to instantiate this object, |
| 21 // and pass the metrics object to SpellCheckHost's factory method. | 21 // and pass the metrics object to SpellCheckHost's factory method. |
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| 85 int last_unique_word_count_; | 85 int last_unique_word_count_; |
| 86 | 86 |
| 87 // Time when first spellcheck happened. | 87 // Time when first spellcheck happened. |
| 88 base::TimeTicks start_time_; | 88 base::TimeTicks start_time_; |
| 89 // Set of checked words in the hashed form. | 89 // Set of checked words in the hashed form. |
| 90 base::hash_set<std::string> checked_word_hashes_; | 90 base::hash_set<std::string> checked_word_hashes_; |
| 91 base::RepeatingTimer<SpellCheckHostMetrics> recording_timer_; | 91 base::RepeatingTimer<SpellCheckHostMetrics> recording_timer_; |
| 92 }; | 92 }; |
| 93 | 93 |
| 94 #endif // CHROME_BROWSER_SPELLCHECKER_SPELLCHECK_HOST_METRICS_H_ | 94 #endif // CHROME_BROWSER_SPELLCHECKER_SPELLCHECK_HOST_METRICS_H_ |
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