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1 // Copyright 2017 The Chromium Authors. All rights reserved. | 1 // Copyright 2017 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_OBSERVERS_RESOURCE_PREFETCH_PREDICTOR_P AGE_LOAD_METRICS_OBSERVER_H_ | 5 #ifndef CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_RESOURCE_PREFETCH_PREDICTOR_P AGE_LOAD_METRICS_OBSERVER_H_ |
6 #define CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_RESOURCE_PREFETCH_PREDICTOR_P AGE_LOAD_METRICS_OBSERVER_H_ | 6 #define CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_RESOURCE_PREFETCH_PREDICTOR_P AGE_LOAD_METRICS_OBSERVER_H_ |
7 | 7 |
8 #include "chrome/browser/page_load_metrics/page_load_metrics_observer.h" | 8 #include "chrome/browser/page_load_metrics/page_load_metrics_observer.h" |
9 #include "chrome/browser/predictors/resource_prefetch_common.h" | |
alexilin
2017/04/28 11:22:03
nit:
Do we need this include?
trevordixon
2017/04/28 12:39:54
Deleted.
| |
9 | 10 |
10 namespace content { | 11 namespace content { |
11 class WebContents; | 12 class WebContents; |
12 } | 13 } |
13 | 14 |
14 namespace predictors { | 15 namespace predictors { |
15 class ResourcePrefetchPredictor; | 16 class ResourcePrefetchPredictor; |
16 } | 17 } |
17 | 18 |
18 namespace internal { | 19 namespace internal { |
19 | 20 |
20 extern const char kHistogramResourcePrefetchPredictorFirstContentfulPaint[]; | 21 extern const char kHistogramResourcePrefetchPredictorFirstContentfulPaint[]; |
21 extern const char kHistogramResourcePrefetchPredictorFirstMeaningfulPaint[]; | 22 extern const char kHistogramResourcePrefetchPredictorFirstMeaningfulPaint[]; |
22 | 23 |
23 } // namespace internal | 24 } // namespace internal |
24 | 25 |
25 // Observer responsible for recording page load metrics relevant to | 26 // Observer responsible for recording page load metrics relevant to |
26 // ResourcePrefetchPredictor. | 27 // ResourcePrefetchPredictor. |
27 class ResourcePrefetchPredictorPageLoadMetricsObserver | 28 class ResourcePrefetchPredictorPageLoadMetricsObserver |
28 : public page_load_metrics::PageLoadMetricsObserver { | 29 : public page_load_metrics::PageLoadMetricsObserver { |
29 public: | 30 public: |
30 // Returns a ResourcePrefetchPredictorPageLoadMetricsObserver, or nullptr if | 31 // Returns a ResourcePrefetchPredictorPageLoadMetricsObserver, or nullptr if |
31 // it is not needed. | 32 // it is not needed. |
32 static std::unique_ptr<ResourcePrefetchPredictorPageLoadMetricsObserver> | 33 static std::unique_ptr<ResourcePrefetchPredictorPageLoadMetricsObserver> |
33 CreateIfNeeded(content::WebContents* web_contents); | 34 CreateIfNeeded(content::WebContents* web_contents); |
34 | 35 |
35 // Public for testing. Normally one should use CreateIfNeeded. Predictor must | 36 // Public for testing. Normally one should use CreateIfNeeded. Predictor must |
36 // outlive this observer. | 37 // outlive this observer. |
37 explicit ResourcePrefetchPredictorPageLoadMetricsObserver( | 38 explicit ResourcePrefetchPredictorPageLoadMetricsObserver( |
38 predictors::ResourcePrefetchPredictor* predictor); | 39 predictors::ResourcePrefetchPredictor* predictor, |
40 content::WebContents* web_contents); | |
39 | 41 |
40 ~ResourcePrefetchPredictorPageLoadMetricsObserver() override; | 42 ~ResourcePrefetchPredictorPageLoadMetricsObserver() override; |
41 | 43 |
42 // page_load_metrics::PageLoadMetricsObserver: | 44 // page_load_metrics::PageLoadMetricsObserver: |
43 ObservePolicy OnStart(content::NavigationHandle* navigation_handle, | 45 ObservePolicy OnStart(content::NavigationHandle* navigation_handle, |
44 const GURL& currently_commited_url, | 46 const GURL& currently_commited_url, |
45 bool started_in_foreground) override; | 47 bool started_in_foreground) override; |
46 ObservePolicy OnHidden( | 48 ObservePolicy OnHidden( |
47 const page_load_metrics::PageLoadTiming& timing, | 49 const page_load_metrics::PageLoadTiming& timing, |
48 const page_load_metrics::PageLoadExtraInfo& extra_info) override; | 50 const page_load_metrics::PageLoadExtraInfo& extra_info) override; |
49 void OnFirstContentfulPaint( | 51 void OnFirstContentfulPaint( |
50 const page_load_metrics::PageLoadTiming& timing, | 52 const page_load_metrics::PageLoadTiming& timing, |
51 const page_load_metrics::PageLoadExtraInfo& extra_info) override; | 53 const page_load_metrics::PageLoadExtraInfo& extra_info) override; |
52 void OnFirstMeaningfulPaint( | 54 void OnFirstMeaningfulPaint( |
53 const page_load_metrics::PageLoadTiming& timing, | 55 const page_load_metrics::PageLoadTiming& timing, |
54 const page_load_metrics::PageLoadExtraInfo& extra_info) override; | 56 const page_load_metrics::PageLoadExtraInfo& extra_info) override; |
55 | 57 |
56 private: | 58 private: |
57 predictors::ResourcePrefetchPredictor* predictor_; | 59 predictors::ResourcePrefetchPredictor* predictor_; |
60 content::WebContents* web_contents_; | |
61 bool record_histograms_; | |
58 | 62 |
59 DISALLOW_COPY_AND_ASSIGN(ResourcePrefetchPredictorPageLoadMetricsObserver); | 63 DISALLOW_COPY_AND_ASSIGN(ResourcePrefetchPredictorPageLoadMetricsObserver); |
60 }; | 64 }; |
61 | 65 |
62 #endif // CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_RESOURCE_PREFETCH_PREDICTO R_PAGE_LOAD_METRICS_OBSERVER_H_ | 66 #endif // CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_RESOURCE_PREFETCH_PREDICTO R_PAGE_LOAD_METRICS_OBSERVER_H_ |
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