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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 <stddef.h> | 8 #include <stddef.h> |
9 | 9 |
10 #include <string> | 10 #include <string> |
11 #include <vector> | 11 #include <vector> |
12 | 12 |
13 #include "base/containers/hash_tables.h" | 13 #include "base/containers/hash_tables.h" |
| 14 #include "base/strings/string16.h" |
14 #include "base/time/time.h" | 15 #include "base/time/time.h" |
15 #include "base/timer/timer.h" | 16 #include "base/timer/timer.h" |
16 | 17 |
17 // A helper object for recording spell-check related histograms. | 18 // A helper object for recording spell-check related histograms. |
18 // This class encapsulates histogram names and metrics API. | 19 // This class encapsulates histogram names and metrics API. |
19 // This also carries a set of counters for collecting histograms | 20 // This also carries a set of counters for collecting histograms |
20 // and a timer for making a periodical summary. | 21 // and a timer for making a periodical summary. |
21 // | 22 // |
22 // We expect a user of SpellCheckHost class to instantiate this object, | 23 // We expect a user of SpellCheckHost class to instantiate this object, |
23 // and pass the metrics object to SpellCheckHost's factory method. | 24 // and pass the metrics object to SpellCheckHost's factory method. |
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87 int last_unique_word_count_; | 88 int last_unique_word_count_; |
88 | 89 |
89 // Time when first spellcheck happened. | 90 // Time when first spellcheck happened. |
90 base::TimeTicks start_time_; | 91 base::TimeTicks start_time_; |
91 // Set of checked words in the hashed form. | 92 // Set of checked words in the hashed form. |
92 base::hash_set<std::string> checked_word_hashes_; | 93 base::hash_set<std::string> checked_word_hashes_; |
93 base::RepeatingTimer recording_timer_; | 94 base::RepeatingTimer recording_timer_; |
94 }; | 95 }; |
95 | 96 |
96 #endif // CHROME_BROWSER_SPELLCHECKER_SPELLCHECK_HOST_METRICS_H_ | 97 #endif // CHROME_BROWSER_SPELLCHECKER_SPELLCHECK_HOST_METRICS_H_ |
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