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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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/predictors/resource_prefetch_predictor.h" | 5 #include "chrome/browser/predictors/resource_prefetch_predictor.h" |
| 6 | 6 |
| 7 #include <map> | 7 #include <map> |
| 8 #include <set> | 8 #include <set> |
| 9 #include <utility> | 9 #include <utility> |
| 10 | 10 |
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| 240 return true; | 240 return true; |
| 241 | 241 |
| 242 // For non cached responses, we will ensure that the freshness lifetime is | 242 // For non cached responses, we will ensure that the freshness lifetime is |
| 243 // some sane value. | 243 // some sane value. |
| 244 const net::HttpResponseInfo& response_info = response->response_info(); | 244 const net::HttpResponseInfo& response_info = response->response_info(); |
| 245 if (!response_info.headers.get()) | 245 if (!response_info.headers.get()) |
| 246 return false; | 246 return false; |
| 247 base::Time response_time(response_info.response_time); | 247 base::Time response_time(response_info.response_time); |
| 248 response_time += base::TimeDelta::FromSeconds(1); | 248 response_time += base::TimeDelta::FromSeconds(1); |
| 249 base::TimeDelta freshness = | 249 base::TimeDelta freshness = |
| 250 response_info.headers->GetFreshnessLifetimes(response_time).fresh; | 250 response_info.headers->GetFreshnessLifetimes(response_time).freshness; |
| 251 return freshness > base::TimeDelta(); | 251 return freshness > base::TimeDelta(); |
| 252 } | 252 } |
| 253 | 253 |
| 254 // static | 254 // static |
| 255 content::ResourceType ResourcePrefetchPredictor::GetResourceTypeFromMimeType( | 255 content::ResourceType ResourcePrefetchPredictor::GetResourceTypeFromMimeType( |
| 256 const std::string& mime_type, | 256 const std::string& mime_type, |
| 257 content::ResourceType fallback) { | 257 content::ResourceType fallback) { |
| 258 if (net::IsSupportedImageMimeType(mime_type.c_str())) | 258 if (net::IsSupportedImageMimeType(mime_type.c_str())) |
| 259 return content::RESOURCE_TYPE_IMAGE; | 259 return content::RESOURCE_TYPE_IMAGE; |
| 260 else if (net::IsSupportedJavascriptMimeType(mime_type.c_str())) | 260 else if (net::IsSupportedJavascriptMimeType(mime_type.c_str())) |
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| 1215 RPP_PREDICTED_HISTOGRAM_PERCENTAGE( | 1215 RPP_PREDICTED_HISTOGRAM_PERCENTAGE( |
| 1216 "PrefetchFromNetworkPercentOfTotalFromNetwork", | 1216 "PrefetchFromNetworkPercentOfTotalFromNetwork", |
| 1217 prefetch_network * 100.0 / total_resources_fetched_from_network); | 1217 prefetch_network * 100.0 / total_resources_fetched_from_network); |
| 1218 } | 1218 } |
| 1219 | 1219 |
| 1220 #undef RPP_PREDICTED_HISTOGRAM_PERCENTAGE | 1220 #undef RPP_PREDICTED_HISTOGRAM_PERCENTAGE |
| 1221 #undef RPP_PREDICTED_HISTOGRAM_COUNTS | 1221 #undef RPP_PREDICTED_HISTOGRAM_COUNTS |
| 1222 } | 1222 } |
| 1223 | 1223 |
| 1224 } // namespace predictors | 1224 } // namespace predictors |
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