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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 #include "components/omnibox/browser/shortcuts_provider.h" | 5 #include "components/omnibox/browser/shortcuts_provider.h" |
6 | 6 |
| 7 #include <stddef.h> |
| 8 |
7 #include <algorithm> | 9 #include <algorithm> |
8 #include <cmath> | 10 #include <cmath> |
9 #include <map> | 11 #include <map> |
10 #include <vector> | 12 #include <vector> |
11 | 13 |
12 #include "base/i18n/break_iterator.h" | 14 #include "base/i18n/break_iterator.h" |
13 #include "base/i18n/case_conversion.h" | 15 #include "base/i18n/case_conversion.h" |
14 #include "base/logging.h" | 16 #include "base/logging.h" |
15 #include "base/metrics/histogram.h" | 17 #include "base/metrics/histogram.h" |
16 #include "base/prefs/pref_service.h" | 18 #include "base/prefs/pref_service.h" |
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412 const double kMaxDecaySpeedDivisor = 5.0; | 414 const double kMaxDecaySpeedDivisor = 5.0; |
413 const double kNumUsesPerDecaySpeedDivisorIncrement = 5.0; | 415 const double kNumUsesPerDecaySpeedDivisorIncrement = 5.0; |
414 double decay_divisor = std::min( | 416 double decay_divisor = std::min( |
415 kMaxDecaySpeedDivisor, | 417 kMaxDecaySpeedDivisor, |
416 (shortcut.number_of_hits + kNumUsesPerDecaySpeedDivisorIncrement - 1) / | 418 (shortcut.number_of_hits + kNumUsesPerDecaySpeedDivisorIncrement - 1) / |
417 kNumUsesPerDecaySpeedDivisorIncrement); | 419 kNumUsesPerDecaySpeedDivisorIncrement); |
418 | 420 |
419 return static_cast<int>((base_score / exp(decay_exponent / decay_divisor)) + | 421 return static_cast<int>((base_score / exp(decay_exponent / decay_divisor)) + |
420 0.5); | 422 0.5); |
421 } | 423 } |
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