predictors: Prefetch resources from manifest.

chrome/browser/predictors/resource_prefetch_predictor.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_PREDICTORS_RESOURCE_PREFETCH_PREDICTOR_H_
 #define CHROME_BROWSER_PREDICTORS_RESOURCE_PREFETCH_PREDICTOR_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 45 matching lines @@
     "ResourcePrefetchPredictor.PrefetchHitsCount.Cached";
 constexpr char kResourcePrefetchPredictorPrefetchHitsCountNotCached[] =
     "ResourcePrefetchPredictor.PrefetchHitsCount.NotCached";
 constexpr char kResourcePrefetchPredictorPrefetchHitsSize[] =
     "ResourcePrefetchPredictor.PrefetchHitsSizeKB";
 constexpr char kResourcePrefetchPredictorPrefetchMissesSize[] =
     "ResourcePrefetchPredictor.PrefetchMissesSizeKB";
 constexpr char kResourcePrefetchPredictorRedirectStatusHistogram[] =
     "ResourcePrefetchPredictor.RedirectStatus";
 
+const uint32_t kVersionedRemovedExperiment = 0x03ff25e3;
 const uint32_t kUnusedRemovedExperiment = 0xf7f77166;
+const uint32_t kNoStoreRemovedExperiment = 0xd90a199a;
 }  // namespace internal
 
 class TestObserver;
 class ResourcePrefetcherManager;
 
 // Contains logic for learning what can be prefetched and for kicking off
 // speculative prefetching.
 // - The class is a profile keyed service owned by the profile.
 // - All the non-static methods of this class need to be called on the UI
 //   thread.
@@ skipping 204 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(ResourcePrefetchPredictorTest,
                            ManifestUnusedRemoved);
   FRIEND_TEST_ALL_PREFIXES(ResourcePrefetchPredictorTest, OnMainFrameRequest);
   FRIEND_TEST_ALL_PREFIXES(ResourcePrefetchPredictorTest, OnMainFrameRedirect);
   FRIEND_TEST_ALL_PREFIXES(ResourcePrefetchPredictorTest,
                            OnSubresourceResponse);
   FRIEND_TEST_ALL_PREFIXES(ResourcePrefetchPredictorTest, GetCorrectPLT);
   FRIEND_TEST_ALL_PREFIXES(ResourcePrefetchPredictorTest, HandledResourceTypes);
   FRIEND_TEST_ALL_PREFIXES(ResourcePrefetchPredictorTest,
                            PopulatePrefetcherRequest);
+  FRIEND_TEST_ALL_PREFIXES(ResourcePrefetchPredictorTest,
+                           PopulatePrefetcherRequestByManifest);
   FRIEND_TEST_ALL_PREFIXES(ResourcePrefetchPredictorTest, GetRedirectEndpoint);
   FRIEND_TEST_ALL_PREFIXES(ResourcePrefetchPredictorTest, GetPrefetchData);
   FRIEND_TEST_ALL_PREFIXES(ResourcePrefetchPredictorTest,
                            TestPrecisionRecallHistograms);
   FRIEND_TEST_ALL_PREFIXES(ResourcePrefetchPredictorTest,
                            TestPrefetchingDurationHistogram);
 
   enum InitializationState {
     NOT_INITIALIZED = 0,
     INITIALIZING = 1,
@@ skipping 56 matching lines @@
   bool GetPrefetchData(const GURL& main_frame_url,
                        Prediction* prediction) const;
 
   // Returns true iff the |data_map| contains PrefetchData that can be used
   // for a |main_frame_key| and fills |urls| with resources that need to be
   // prefetched. |urls| pointer may be equal nullptr to get return value only.
   bool PopulatePrefetcherRequest(const std::string& main_frame_key,
                                  const PrefetchDataMap& data_map,
                                  std::vector<GURL>* urls) const;
 
+  // Returns true iff the manifest table contains PrecacheManifest that can be
+  // used for a |manifest_host| and fills |urls| with resources that need to be
+  // prefetched. |urls| pointer may be equal nullptr to get return value only.

[Benoit L, 2017/04/18 16:28:39]

nit: |urls| may be nullptr to get the return value only.

[alexilin, 2017/04/19 07:59:25]

Done.

+  bool PopulatePrefetcherRequestByManifest(const std::string& manifest_host,
+                                           std::vector<GURL>* urls) const;

[Benoit L, 2017/04/18 16:28:39]

nit: PopulateFromManifest()?

[alexilin, 2017/04/19 07:59:25]

Done.

+
   // Callback for task to read predictor database. Takes ownership of
   // all arguments.
   void CreateCaches(std::unique_ptr<PrefetchDataMap> url_data_map,
                     std::unique_ptr<PrefetchDataMap> host_data_map,
                     std::unique_ptr<RedirectDataMap> url_redirect_data_map,
                     std::unique_ptr<RedirectDataMap> host_redirect_data_map,
                     std::unique_ptr<ManifestDataMap> manifest_data_map,
                     std::unique_ptr<OriginDataMap> origin_data_map);
 
   // Called during initialization when history is read and the predictor
@@ skipping 132 matching lines @@
 
  private:
   ResourcePrefetchPredictor* predictor_;
 
   DISALLOW_COPY_AND_ASSIGN(TestObserver);
 };
 
 }  // namespace predictors
 
 #endif  // CHROME_BROWSER_PREDICTORS_RESOURCE_PREFETCH_PREDICTOR_H_