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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_histograms.h" | 5 #include "chrome/browser/prerender/prerender_histograms.h" |
6 | 6 |
7 #include <string> | 7 #include <string> |
8 | 8 |
9 #include "base/format_macros.h" | 9 #include "base/format_macros.h" |
10 #include "base/metrics/histogram.h" | 10 #include "base/metrics/histogram.h" |
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146 // reset the window to begin at the most recent occurrence, so that we will | 146 // reset the window to begin at the most recent occurrence, so that we will |
147 // always be in a window in the 30 seconds from each occurrence. | 147 // always be in a window in the 30 seconds from each occurrence. |
148 last_prerender_seen_time_ = GetCurrentTimeTicks(); | 148 last_prerender_seen_time_ = GetCurrentTimeTicks(); |
149 seen_any_pageload_ = false; | 149 seen_any_pageload_ = false; |
150 seen_pageload_started_after_prerender_ = false; | 150 seen_pageload_started_after_prerender_ = false; |
151 } | 151 } |
152 | 152 |
153 void PrerenderHistograms::RecordPrerenderStarted(Origin origin) const { | 153 void PrerenderHistograms::RecordPrerenderStarted(Origin origin) const { |
154 if (OriginIsOmnibox(origin)) { | 154 if (OriginIsOmnibox(origin)) { |
155 UMA_HISTOGRAM_ENUMERATION( | 155 UMA_HISTOGRAM_ENUMERATION( |
156 base::StringPrintf("Prerender.OmniboxPrerenderCount%s", | 156 "Prerender.OmniboxPrerenderCount", 1, 2); |
157 PrerenderManager::GetModeString()), 1, 2); | |
158 } | 157 } |
159 } | 158 } |
160 | 159 |
161 void PrerenderHistograms::RecordConcurrency(size_t prerender_count) const { | 160 void PrerenderHistograms::RecordConcurrency(size_t prerender_count) const { |
162 static const size_t kMaxRecordableConcurrency = 20; | 161 static const size_t kMaxRecordableConcurrency = 20; |
163 DCHECK_GE(kMaxRecordableConcurrency, Config().max_link_concurrency); | 162 DCHECK_GE(kMaxRecordableConcurrency, Config().max_link_concurrency); |
164 UMA_HISTOGRAM_ENUMERATION( | 163 UMA_HISTOGRAM_ENUMERATION( |
165 base::StringPrintf("Prerender.PrerenderCountOf%" PRIuS "Max", | 164 base::StringPrintf("Prerender.PrerenderCountOf%" PRIuS "Max", |
166 kMaxRecordableConcurrency), | 165 kMaxRecordableConcurrency), |
167 prerender_count, kMaxRecordableConcurrency + 1); | 166 prerender_count, kMaxRecordableConcurrency + 1); |
168 } | 167 } |
169 | 168 |
170 void PrerenderHistograms::RecordUsedPrerender(Origin origin) const { | 169 void PrerenderHistograms::RecordUsedPrerender(Origin origin) const { |
171 if (OriginIsOmnibox(origin)) { | 170 if (OriginIsOmnibox(origin)) { |
172 UMA_HISTOGRAM_ENUMERATION( | 171 UMA_HISTOGRAM_ENUMERATION( |
173 base::StringPrintf("Prerender.OmniboxNavigationsUsedPrerenderCount%s", | 172 "Prerender.OmniboxNavigationsUsedPrerenderCount", 1, 2); |
174 PrerenderManager::GetModeString()), 1, 2); | |
175 } | 173 } |
176 } | 174 } |
177 | 175 |
178 void PrerenderHistograms::RecordTimeSinceLastRecentVisit( | 176 void PrerenderHistograms::RecordTimeSinceLastRecentVisit( |
179 Origin origin, | 177 Origin origin, |
180 base::TimeDelta delta) const { | 178 base::TimeDelta delta) const { |
181 PREFIXED_HISTOGRAM( | 179 PREFIXED_HISTOGRAM( |
182 "TimeSinceLastRecentVisit", origin, | 180 "TimeSinceLastRecentVisit", origin, |
183 UMA_HISTOGRAM_TIMES(name, delta)); | 181 UMA_HISTOGRAM_TIMES(name, delta)); |
184 } | 182 } |
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385 } | 383 } |
386 } | 384 } |
387 | 385 |
388 bool PrerenderHistograms::IsOriginWash() const { | 386 bool PrerenderHistograms::IsOriginWash() const { |
389 if (!WithinWindow()) | 387 if (!WithinWindow()) |
390 return false; | 388 return false; |
391 return origin_wash_; | 389 return origin_wash_; |
392 } | 390 } |
393 | 391 |
394 } // namespace prerender | 392 } // namespace prerender |
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