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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 "chrome/browser/prerender/prerender_field_trial.h" | 5 #include "chrome/browser/prerender/prerender_field_trial.h" |
6 | 6 |
7 #include "base/command_line.h" | 7 #include "base/command_line.h" |
8 #include "base/logging.h" | 8 #include "base/logging.h" |
9 #include "base/metrics/field_trial.h" | 9 #include "base/metrics/field_trial.h" |
10 #include "base/metrics/histogram.h" | 10 #include "base/metrics/histogram.h" |
11 #include "chrome/browser/autocomplete/network_action_predictor.h" | |
12 #include "chrome/browser/metrics/metrics_service.h" | 11 #include "chrome/browser/metrics/metrics_service.h" |
| 12 #include "chrome/browser/predictors/autocomplete_action_predictor.h" |
13 #include "chrome/browser/prefs/pref_service.h" | 13 #include "chrome/browser/prefs/pref_service.h" |
14 #include "chrome/browser/prerender/prerender_manager.h" | 14 #include "chrome/browser/prerender/prerender_manager.h" |
15 #include "chrome/browser/profiles/profile.h" | 15 #include "chrome/browser/profiles/profile.h" |
16 #include "chrome/common/chrome_switches.h" | 16 #include "chrome/common/chrome_switches.h" |
17 #include "chrome/common/chrome_version_info.h" | 17 #include "chrome/common/chrome_version_info.h" |
18 | 18 |
19 namespace prerender { | 19 namespace prerender { |
20 | 20 |
21 namespace { | 21 namespace { |
22 | 22 |
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205 new base::FieldTrial("OmniboxPrerenderHitWeightingTrial", kDivisor, | 205 new base::FieldTrial("OmniboxPrerenderHitWeightingTrial", kDivisor, |
206 "OmniboxPrerenderWeight1.0", 2012, 8, 30)); | 206 "OmniboxPrerenderWeight1.0", 2012, 8, 30)); |
207 const int kOmniboxWeightFourGroup = | 207 const int kOmniboxWeightFourGroup = |
208 weighting_trial->AppendGroup("OmniboxPrerenderWeight4.0", | 208 weighting_trial->AppendGroup("OmniboxPrerenderWeight4.0", |
209 kFourProbability); | 209 kFourProbability); |
210 const int kOmniboxWeightEightGroup = | 210 const int kOmniboxWeightEightGroup = |
211 weighting_trial->AppendGroup("OmniboxPrerenderWeight8.0", | 211 weighting_trial->AppendGroup("OmniboxPrerenderWeight8.0", |
212 kEightProbability); | 212 kEightProbability); |
213 const int group = weighting_trial->group(); | 213 const int group = weighting_trial->group(); |
214 if (group == kOmniboxWeightFourGroup) | 214 if (group == kOmniboxWeightFourGroup) |
215 NetworkActionPredictor::set_hit_weight(4.0); | 215 predictors::AutocompleteActionPredictor::set_hit_weight(4.0); |
216 else if (group == kOmniboxWeightEightGroup) | 216 else if (group == kOmniboxWeightEightGroup) |
217 NetworkActionPredictor::set_hit_weight(8.0); | 217 predictors::AutocompleteActionPredictor::set_hit_weight(8.0); |
218 } | 218 } |
219 | 219 |
220 bool IsOmniboxEnabled(Profile* profile) { | 220 bool IsOmniboxEnabled(Profile* profile) { |
221 if (!profile || profile->IsOffTheRecord()) | 221 if (!profile || profile->IsOffTheRecord()) |
222 return false; | 222 return false; |
223 | 223 |
224 if (!PrerenderManager::IsPrerenderingPossible()) | 224 if (!PrerenderManager::IsPrerenderingPossible()) |
225 return false; | 225 return false; |
226 | 226 |
227 // Override any field trial groups if the user has set a command line flag. | 227 // Override any field trial groups if the user has set a command line flag. |
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239 | 239 |
240 DCHECK(switch_value == switches::kPrerenderFromOmniboxSwitchValueAuto); | 240 DCHECK(switch_value == switches::kPrerenderFromOmniboxSwitchValueAuto); |
241 } | 241 } |
242 | 242 |
243 const int group = base::FieldTrialList::FindValue(kOmniboxTrialName); | 243 const int group = base::FieldTrialList::FindValue(kOmniboxTrialName); |
244 return group == base::FieldTrial::kNotFinalized || | 244 return group == base::FieldTrial::kNotFinalized || |
245 group == base::FieldTrial::kDefaultGroupNumber; | 245 group == base::FieldTrial::kDefaultGroupNumber; |
246 } | 246 } |
247 | 247 |
248 } // namespace prerender | 248 } // namespace prerender |
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