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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_METRICS_WEB_CONTENTS_OBSERVER_H_ | 5 #ifndef CHROME_BROWSER_PAGE_LOAD_METRICS_METRICS_WEB_CONTENTS_OBSERVER_H_ |
| 6 #define CHROME_BROWSER_PAGE_LOAD_METRICS_METRICS_WEB_CONTENTS_OBSERVER_H_ | 6 #define CHROME_BROWSER_PAGE_LOAD_METRICS_METRICS_WEB_CONTENTS_OBSERVER_H_ |
| 7 | 7 |
| 8 #include <map> | 8 #include <map> |
| 9 #include <memory> | 9 #include <memory> |
| 10 #include <vector> | 10 #include <vector> |
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| 175 void AddObserver(std::unique_ptr<PageLoadMetricsObserver> observer); | 175 void AddObserver(std::unique_ptr<PageLoadMetricsObserver> observer); |
| 176 | 176 |
| 177 // If the user performs some abort-like action while we are tracking this page | 177 // If the user performs some abort-like action while we are tracking this page |
| 178 // load, notify the tracker. Note that we may not classify this as an abort if | 178 // load, notify the tracker. Note that we may not classify this as an abort if |
| 179 // we've already performed a first paint. | 179 // we've already performed a first paint. |
| 180 // is_certainly_browser_timestamp signifies if the timestamp passed is taken | 180 // is_certainly_browser_timestamp signifies if the timestamp passed is taken |
| 181 // in the | 181 // in the |
| 182 // browser process or not. We need this to possibly clamp browser timestamp on | 182 // browser process or not. We need this to possibly clamp browser timestamp on |
| 183 // a machine with inter process time tick skew. | 183 // a machine with inter process time tick skew. |
| 184 void NotifyAbort(UserAbortType abort_type, | 184 void NotifyAbort(UserAbortType abort_type, |
| 185 bool user_initiated, |
| 185 base::TimeTicks timestamp, | 186 base::TimeTicks timestamp, |
| 186 bool is_certainly_browser_timestamp); | 187 bool is_certainly_browser_timestamp); |
| 187 void UpdateAbort(UserAbortType abort_type, | 188 void UpdateAbort(UserAbortType abort_type, |
| 189 bool user_initiated, |
| 188 base::TimeTicks timestamp, | 190 base::TimeTicks timestamp, |
| 189 bool is_certainly_browser_timestamp); | 191 bool is_certainly_browser_timestamp); |
| 190 | 192 |
| 191 // This method returns true if this page load has been aborted with type of | 193 // This method returns true if this page load has been aborted with type of |
| 192 // ABORT_OTHER, and the |abort_cause_time| is within a sufficiently close | 194 // ABORT_OTHER, and the |abort_cause_time| is within a sufficiently close |
| 193 // delta to when it was aborted. Note that only provisional loads can be | 195 // delta to when it was aborted. Note that only provisional loads can be |
| 194 // aborted with ABORT_OTHER. While this heuristic is coarse, it works better | 196 // aborted with ABORT_OTHER. While this heuristic is coarse, it works better |
| 195 // and is simpler than other feasible methods. See https://goo.gl/WKRG98. | 197 // and is simpler than other feasible methods. See https://goo.gl/WKRG98. |
| 196 bool IsLikelyProvisionalAbort(base::TimeTicks abort_cause_time) const; | 198 bool IsLikelyProvisionalAbort(base::TimeTicks abort_cause_time) const; |
| 197 | 199 |
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| 212 private: | 214 private: |
| 213 // This function converts a TimeTicks value taken in the browser process | 215 // This function converts a TimeTicks value taken in the browser process |
| 214 // to navigation_start_ if: | 216 // to navigation_start_ if: |
| 215 // - base::TimeTicks is not comparable across processes because the clock | 217 // - base::TimeTicks is not comparable across processes because the clock |
| 216 // is not system wide monotonic. | 218 // is not system wide monotonic. |
| 217 // - *event_time < navigation_start_ | 219 // - *event_time < navigation_start_ |
| 218 void ClampBrowserTimestampIfInterProcessTimeTickSkew( | 220 void ClampBrowserTimestampIfInterProcessTimeTickSkew( |
| 219 base::TimeTicks* event_time); | 221 base::TimeTicks* event_time); |
| 220 | 222 |
| 221 void UpdateAbortInternal(UserAbortType abort_type, | 223 void UpdateAbortInternal(UserAbortType abort_type, |
| 224 bool user_initiated, |
| 222 base::TimeTicks timestamp, | 225 base::TimeTicks timestamp, |
| 223 bool is_certainly_browser_timestamp); | 226 bool is_certainly_browser_timestamp); |
| 224 | 227 |
| 225 // If |final_navigation| is null, then this is an "unparented" abort chain, | 228 // If |final_navigation| is null, then this is an "unparented" abort chain, |
| 226 // and represents a sequence of provisional aborts that never ends with a | 229 // and represents a sequence of provisional aborts that never ends with a |
| 227 // committed load. | 230 // committed load. |
| 228 void LogAbortChainHistograms(content::NavigationHandle* final_navigation); | 231 void LogAbortChainHistograms(content::NavigationHandle* final_navigation); |
| 229 | 232 |
| 230 // Whether we stopped tracking this navigation after it was initiated. We may | 233 // Whether we stopped tracking this navigation after it was initiated. We may |
| 231 // stop tracking a navigation if it doesn't meet the criteria for tracking | 234 // stop tracking a navigation if it doesn't meet the criteria for tracking |
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| 245 | 248 |
| 246 // The URL of this page load. This is the provisional url before commit | 249 // The URL of this page load. This is the provisional url before commit |
| 247 // (before redirects), and the committed url after commit. | 250 // (before redirects), and the committed url after commit. |
| 248 GURL url_; | 251 GURL url_; |
| 249 | 252 |
| 250 std::unique_ptr<FailedProvisionalLoadInfo> failed_provisional_load_info_; | 253 std::unique_ptr<FailedProvisionalLoadInfo> failed_provisional_load_info_; |
| 251 | 254 |
| 252 // Will be ABORT_NONE if we have not aborted this load yet. Otherwise will | 255 // Will be ABORT_NONE if we have not aborted this load yet. Otherwise will |
| 253 // be the first abort action the user performed. | 256 // be the first abort action the user performed. |
| 254 UserAbortType abort_type_; | 257 UserAbortType abort_type_; |
| 258 |
| 259 // This boolean is only an approximation. As the aborts pipeline is updated, |
| 260 // more abort types will have this set to true. Currently, this is only set |
| 261 // for navigations aborting navigations. |
| 262 bool abort_user_initiated_; |
| 263 |
| 255 base::TimeTicks abort_time_; | 264 base::TimeTicks abort_time_; |
| 256 | 265 |
| 257 // We record separate metrics for events that occur after a background, | 266 // We record separate metrics for events that occur after a background, |
| 258 // because metrics like layout/paint are delayed artificially | 267 // because metrics like layout/paint are delayed artificially |
| 259 // when they occur in the background. | 268 // when they occur in the background. |
| 260 base::TimeTicks background_time_; | 269 base::TimeTicks background_time_; |
| 261 base::TimeTicks foreground_time_; | 270 base::TimeTicks foreground_time_; |
| 262 bool started_in_foreground_; | 271 bool started_in_foreground_; |
| 263 | 272 |
| 264 PageLoadTiming timing_; | 273 PageLoadTiming timing_; |
| 265 PageLoadMetadata metadata_; | 274 PageLoadMetadata metadata_; |
| 266 | 275 |
| 267 ui::PageTransition page_transition_; | 276 ui::PageTransition page_transition_; |
| 268 | 277 |
| 269 // Note: these are only approximations, based on WebContents attribution from | 278 // Note: these are only approximations, based on WebContents attribution from |
| 270 // ResourceRequestInfo objects while this is the currently committed load in | 279 // ResourceRequestInfo objects while this is the currently committed load in |
| 271 // the WebContents. | 280 // the WebContents. |
| 272 int num_cache_requests_; | 281 int num_cache_requests_; |
| 273 int num_network_requests_; | 282 int num_network_requests_; |
| 274 | 283 |
| 284 // This is derived from the user gesture bit in the renderer. For browser |
| 285 // initiated navigations this will always be true. |
| 286 bool user_gesture_; |
| 287 |
| 275 // This is a subtle member. If a provisional load A gets aborted by | 288 // This is a subtle member. If a provisional load A gets aborted by |
| 276 // provisional load B, which gets aborted by C that eventually commits, then | 289 // provisional load B, which gets aborted by C that eventually commits, then |
| 277 // there exists an abort chain of length 2, starting at A's navigation_start. | 290 // there exists an abort chain of length 2, starting at A's navigation_start. |
| 278 // This is useful because it allows histograming abort chain lengths based on | 291 // This is useful because it allows histograming abort chain lengths based on |
| 279 // what the last load's transition type is. i.e. holding down F-5 to spam | 292 // what the last load's transition type is. i.e. holding down F-5 to spam |
| 280 // reload will produce a long chain with the RELOAD transition. | 293 // reload will produce a long chain with the RELOAD transition. |
| 281 const int aborted_chain_size_; | 294 const int aborted_chain_size_; |
| 282 | 295 |
| 283 // This member counts consecutive provisional aborts that share a url. It will | 296 // This member counts consecutive provisional aborts that share a url. It will |
| 284 // always be less than or equal to |aborted_chain_size_|. | 297 // always be less than or equal to |aborted_chain_size_|. |
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| 347 void HandleFailedNavigationForTrackedLoad( | 360 void HandleFailedNavigationForTrackedLoad( |
| 348 content::NavigationHandle* navigation_handle, | 361 content::NavigationHandle* navigation_handle, |
| 349 std::unique_ptr<PageLoadTracker> tracker); | 362 std::unique_ptr<PageLoadTracker> tracker); |
| 350 | 363 |
| 351 void HandleCommittedNavigationForTrackedLoad( | 364 void HandleCommittedNavigationForTrackedLoad( |
| 352 content::NavigationHandle* navigation_handle, | 365 content::NavigationHandle* navigation_handle, |
| 353 std::unique_ptr<PageLoadTracker> tracker); | 366 std::unique_ptr<PageLoadTracker> tracker); |
| 354 | 367 |
| 355 // Notify all loads, provisional and committed, that we performed an action | 368 // Notify all loads, provisional and committed, that we performed an action |
| 356 // that might abort them. | 369 // that might abort them. |
| 357 void NotifyAbortAllLoads(UserAbortType abort_type); | 370 void NotifyAbortAllLoads(UserAbortType abort_type, bool user_initiated); |
| 358 void NotifyAbortAllLoadsWithTimestamp(UserAbortType abort_type, | 371 void NotifyAbortAllLoadsWithTimestamp(UserAbortType abort_type, |
| 372 bool user_initiated, |
| 359 base::TimeTicks timestamp, | 373 base::TimeTicks timestamp, |
| 360 bool is_certainly_browser_timestamp); | 374 bool is_certainly_browser_timestamp); |
| 361 | 375 |
| 362 // Register / Unregister input event callback to given RenderViewHost | 376 // Register / Unregister input event callback to given RenderViewHost |
| 363 void RegisterInputEventObserver(content::RenderViewHost* host); | 377 void RegisterInputEventObserver(content::RenderViewHost* host); |
| 364 void UnregisterInputEventObserver(content::RenderViewHost* host); | 378 void UnregisterInputEventObserver(content::RenderViewHost* host); |
| 365 | 379 |
| 366 // Notify aborted provisional loads that a new navigation occurred. This is | 380 // Notify aborted provisional loads that a new navigation occurred. This is |
| 367 // used for more consistent attribution tracking for aborted provisional | 381 // used for more consistent attribution tracking for aborted provisional |
| 368 // loads. This method returns the provisional load that was likely aborted | 382 // loads. This method returns the provisional load that was likely aborted |
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| 402 | 416 |
| 403 // Has the MWCO observed at least one navigation? | 417 // Has the MWCO observed at least one navigation? |
| 404 bool has_navigated_; | 418 bool has_navigated_; |
| 405 | 419 |
| 406 DISALLOW_COPY_AND_ASSIGN(MetricsWebContentsObserver); | 420 DISALLOW_COPY_AND_ASSIGN(MetricsWebContentsObserver); |
| 407 }; | 421 }; |
| 408 | 422 |
| 409 } // namespace page_load_metrics | 423 } // namespace page_load_metrics |
| 410 | 424 |
| 411 #endif // CHROME_BROWSER_PAGE_LOAD_METRICS_METRICS_WEB_CONTENTS_OBSERVER_H_ | 425 #endif // CHROME_BROWSER_PAGE_LOAD_METRICS_METRICS_WEB_CONTENTS_OBSERVER_H_ |
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