predictors: Use redirect data in prefetch.

chrome/browser/predictors/resource_prefetch_predictor_tables.cc

Index: chrome/browser/predictors/resource_prefetch_predictor_tables.cc
diff --git a/chrome/browser/predictors/resource_prefetch_predictor_tables.cc b/chrome/browser/predictors/resource_prefetch_predictor_tables.cc
index be1d55179a18c18842b1201b74fe6a1d9f34c524..eca2c77ee31104dcffa174b80492a1c367990294 100644
--- a/chrome/browser/predictors/resource_prefetch_predictor_tables.cc
+++ b/chrome/browser/predictors/resource_prefetch_predictor_tables.cc
@@ -115,16 +115,6 @@ void ResourcePrefetchPredictorTables::TrimRedirects(
       new_end, data->mutable_redirect_endpoints()->end());
 }
 
-// static
-void ResourcePrefetchPredictorTables::SortRedirects(RedirectData* data) {
-  std::sort(data->mutable_redirect_endpoints()->begin(),
-            data->mutable_redirect_endpoints()->end(),
-            [](const RedirectStat& x, const RedirectStat& y) {
-              // Decreasing score ordering.
-              return ComputeRedirectScore(x) > ComputeRedirectScore(y);
-            });
-}
-
 void ResourcePrefetchPredictorTables::GetAllData(
     PrefetchDataMap* url_data_map,
     PrefetchDataMap* host_data_map,
@@ -288,11 +278,6 @@ void ResourcePrefetchPredictorTables::GetAllRedirectDataHelper(
     data_map->insert(std::make_pair(key, data));
     DCHECK_EQ(data.primary_key(), key);
   }
-
-  // Sort each of the redirect vectors by score.
-  for (auto& kv : *data_map) {
-    SortRedirects(&(kv.second));
-  }
 }
 
 bool ResourcePrefetchPredictorTables::UpdateDataHelper(
@@ -372,13 +357,6 @@ float ResourcePrefetchPredictorTables::ComputeResourceScore(
 }
 
 // static
-float ResourcePrefetchPredictorTables::ComputeRedirectScore(
-    const RedirectStat& data) {
-  // TODO(alexilin): Invent some scoring.
-  return 0.0;
-}
-
-// static
 bool ResourcePrefetchPredictorTables::DropTablesIfOutdated(
     sql::Connection* db) {
   int version = GetDatabaseVersion(db);