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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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_PAGE_LOAD_METRICS_PAGE_LOAD_METRICS_OBSERVER_H_ | 5 #ifndef CHROME_BROWSER_PAGE_LOAD_METRICS_PAGE_LOAD_METRICS_OBSERVER_H_ |
6 #define CHROME_BROWSER_PAGE_LOAD_METRICS_PAGE_LOAD_METRICS_OBSERVER_H_ | 6 #define CHROME_BROWSER_PAGE_LOAD_METRICS_PAGE_LOAD_METRICS_OBSERVER_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 #include <string> | 9 #include <string> |
10 | 10 |
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190 const base::Optional<base::TimeDelta> page_end_time; | 190 const base::Optional<base::TimeDelta> page_end_time; |
191 | 191 |
192 // Extra information supplied to the page load metrics system from the | 192 // Extra information supplied to the page load metrics system from the |
193 // renderer for the main frame. | 193 // renderer for the main frame. |
194 const PageLoadMetadata main_frame_metadata; | 194 const PageLoadMetadata main_frame_metadata; |
195 | 195 |
196 // PageLoadMetadata for child frames of the current page load. | 196 // PageLoadMetadata for child frames of the current page load. |
197 const PageLoadMetadata child_frame_metadata; | 197 const PageLoadMetadata child_frame_metadata; |
198 }; | 198 }; |
199 | 199 |
200 // Container for various information about a request within a page load. | 200 // Container for various information about a completed request within a page |
201 struct ExtraRequestInfo { | 201 // load. |
202 ExtraRequestInfo(bool was_cached, | 202 struct ExtraRequestCompleteInfo { |
203 int64_t raw_body_bytes, | 203 ExtraRequestCompleteInfo( |
204 int64_t original_network_content_length, | 204 bool was_cached, |
205 std::unique_ptr<data_reduction_proxy::DataReductionProxyData> | 205 int64_t raw_body_bytes, |
206 data_reduction_proxy_data); | 206 int64_t original_network_content_length, |
| 207 std::unique_ptr<data_reduction_proxy::DataReductionProxyData> |
| 208 data_reduction_proxy_data, |
| 209 content::ResourceType detected_resource_type); |
207 | 210 |
208 ~ExtraRequestInfo(); | 211 ~ExtraRequestCompleteInfo(); |
209 | 212 |
210 // True if the resource was loaded from cache. | 213 // True if the resource was loaded from cache. |
211 const bool was_cached; | 214 const bool was_cached; |
212 | 215 |
213 // The number of body (not header) prefilter bytes. | 216 // The number of body (not header) prefilter bytes. |
214 const int64_t raw_body_bytes; | 217 const int64_t raw_body_bytes; |
215 | 218 |
216 // The number of body (not header) bytes that the data reduction proxy saw | 219 // The number of body (not header) bytes that the data reduction proxy saw |
217 // before it compressed the requests. | 220 // before it compressed the requests. |
218 const int64_t original_network_content_length; | 221 const int64_t original_network_content_length; |
219 | 222 |
220 // Data related to data saver. | 223 // Data related to data saver. |
221 const std::unique_ptr<data_reduction_proxy::DataReductionProxyData> | 224 const std::unique_ptr<data_reduction_proxy::DataReductionProxyData> |
222 data_reduction_proxy_data; | 225 data_reduction_proxy_data; |
| 226 |
| 227 // The type of the request as gleaned from the mime type. This may |
| 228 // be more accurate than the type in the ExtraRequestStartInfo since we can |
| 229 // examine the type headers that arrived with the request. During XHRs, we |
| 230 // sometimes see resources come back as a different type than we expected. |
| 231 const content::ResourceType resource_type; |
| 232 }; |
| 233 |
| 234 // Container for various information about a started request within a page load. |
| 235 struct ExtraRequestStartInfo { |
| 236 explicit ExtraRequestStartInfo(content::ResourceType type); |
| 237 |
| 238 ExtraRequestStartInfo(const ExtraRequestStartInfo& other); |
| 239 |
| 240 ~ExtraRequestStartInfo(); |
| 241 |
| 242 // The type of the request as gleaned from the DOM or the file extension. This |
| 243 // may be less accurate than the type at request completion time, which has |
| 244 // access to mime-type headers. During XHRs, we sometimes see resources come |
| 245 // back as a different type than we expected. |
| 246 const content::ResourceType resource_type; |
223 }; | 247 }; |
224 | 248 |
225 // Interface for PageLoadMetrics observers. All instances of this class are | 249 // Interface for PageLoadMetrics observers. All instances of this class are |
226 // owned by the PageLoadTracker tracking a page load. | 250 // owned by the PageLoadTracker tracking a page load. |
227 class PageLoadMetricsObserver { | 251 class PageLoadMetricsObserver { |
228 public: | 252 public: |
229 // ObservePolicy is used as a return value on some PageLoadMetricsObserver | 253 // ObservePolicy is used as a return value on some PageLoadMetricsObserver |
230 // callbacks to indicate whether the observer would like to continue observing | 254 // callbacks to indicate whether the observer would like to continue observing |
231 // metric callbacks. Observers that wish to continue observing metric | 255 // metric callbacks. Observers that wish to continue observing metric |
232 // callbacks should return CONTINUE_OBSERVING; observers that wish to stop | 256 // callbacks should return CONTINUE_OBSERVING; observers that wish to stop |
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370 // frequently on Android). | 394 // frequently on Android). |
371 virtual void OnComplete(const PageLoadTiming& timing, | 395 virtual void OnComplete(const PageLoadTiming& timing, |
372 const PageLoadExtraInfo& extra_info) {} | 396 const PageLoadExtraInfo& extra_info) {} |
373 | 397 |
374 // OnFailedProvisionalLoad is invoked for tracked page loads that did not | 398 // OnFailedProvisionalLoad is invoked for tracked page loads that did not |
375 // commit, immediately before the observer is deleted. | 399 // commit, immediately before the observer is deleted. |
376 virtual void OnFailedProvisionalLoad( | 400 virtual void OnFailedProvisionalLoad( |
377 const FailedProvisionalLoadInfo& failed_provisional_load_info, | 401 const FailedProvisionalLoadInfo& failed_provisional_load_info, |
378 const PageLoadExtraInfo& extra_info) {} | 402 const PageLoadExtraInfo& extra_info) {} |
379 | 403 |
| 404 // Called whenever a request load begins. |
| 405 virtual void OnStartedResource( |
| 406 const ExtraRequestStartInfo& extra_request_start_info) {} |
| 407 |
380 // Called whenever a request is loaded for this page load. | 408 // Called whenever a request is loaded for this page load. |
381 virtual void OnLoadedResource(const ExtraRequestInfo& extra_request_info) {} | 409 virtual void OnLoadedResource( |
| 410 const ExtraRequestCompleteInfo& extra_request_complete_info) {} |
382 }; | 411 }; |
383 | 412 |
384 } // namespace page_load_metrics | 413 } // namespace page_load_metrics |
385 | 414 |
386 #endif // CHROME_BROWSER_PAGE_LOAD_METRICS_PAGE_LOAD_METRICS_OBSERVER_H_ | 415 #endif // CHROME_BROWSER_PAGE_LOAD_METRICS_PAGE_LOAD_METRICS_OBSERVER_H_ |
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