chrome/browser/predictors/resource_prefetch_predictor_tab_helper.cc - Issue 577543002: Revert of Revert CL 117933003. Re-add resource speculative prefetching code.

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Issue 577543002: Revert of Revert CL 117933003. Re-add resource speculative prefetching code. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src

Patch Set: Created 6 years, 3 months ago

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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

3 // found in the LICENSE file.

4

5 #include "chrome/browser/predictors/resource_prefetch_predictor_tab_helper.h"

6

7 #include "chrome/browser/predictors/resource_prefetch_predictor.h"

8 #include "chrome/browser/predictors/resource_prefetch_predictor_factory.h"

9 #include "chrome/browser/profiles/profile.h"

10 #include "content/public/browser/browser_thread.h"

11 #include "content/public/browser/load_from_memory_cache_details.h"

12

13 DEFINE_WEB_CONTENTS_USER_DATA_KEY(

14 predictors::ResourcePrefetchPredictorTabHelper);

15

16 using content::BrowserThread;

17

18 namespace predictors {

19

20 ResourcePrefetchPredictorTabHelper::ResourcePrefetchPredictorTabHelper(

21 content::WebContents* web_contents)

22 : content::WebContentsObserver(web_contents) {

23 }

24

25 ResourcePrefetchPredictorTabHelper::~ResourcePrefetchPredictorTabHelper() {

26 }

27

28 void ResourcePrefetchPredictorTabHelper::DocumentOnLoadCompletedInMainFrame() {

29 DCHECK_CURRENTLY_ON(BrowserThread::UI);

30

31 ResourcePrefetchPredictor* predictor =

32 ResourcePrefetchPredictorFactory::GetForProfile(

33 web_contents()->GetBrowserContext());

34 if (!predictor)

35 return;

36

37 NavigationID navigation_id(web_contents());

38 predictor->RecordMainFrameLoadComplete(navigation_id);

39 }

40

41 void ResourcePrefetchPredictorTabHelper::DidLoadResourceFromMemoryCache(

42 const content::LoadFromMemoryCacheDetails& details) {

43 DCHECK_CURRENTLY_ON(BrowserThread::UI);

44

45 ResourcePrefetchPredictor* predictor =

46 ResourcePrefetchPredictorFactory::GetForProfile(

47 web_contents()->GetBrowserContext());

48 if (!predictor)

49 return;

50

51 ResourcePrefetchPredictor::URLRequestSummary summary;

52 summary.navigation_id = NavigationID(web_contents());

53 summary.resource_url = details.url;

54 summary.mime_type = details.mime_type;

55 summary.resource_type =

56 ResourcePrefetchPredictor::GetResourceTypeFromMimeType(

57 details.mime_type, details.resource_type);

58 summary.was_cached = true;

59 predictor->RecordURLResponse(summary);

60 }

61

62 } // namespace predictors

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