predictors: Move more methods from ResourcePrefetchPredictor into LoadingDataCollector.

chrome/browser/predictors/loading_predictor.cc

Index: chrome/browser/predictors/loading_predictor.cc
diff --git a/chrome/browser/predictors/loading_predictor.cc b/chrome/browser/predictors/loading_predictor.cc
index d6c7f9b81256d9ee62a31c541950da9bb98ed4fb..b66a815b0d77f9d949a7eb72e8a73d1f8c682ee9 100644
--- a/chrome/browser/predictors/loading_predictor.cc
+++ b/chrome/browser/predictors/loading_predictor.cc
@@ -15,8 +15,6 @@
 
 namespace predictors {
 
-using URLRequestSummary = ResourcePrefetchPredictor::URLRequestSummary;
-
 LoadingPredictor::LoadingPredictor(const LoadingPredictorConfig& config,
                                    Profile* profile)
     : config_(config),
@@ -27,7 +25,9 @@ LoadingPredictor::LoadingPredictor(const LoadingPredictorConfig& config,
           resource_prefetch_predictor_.get(),
           config)),
       loading_data_collector_(base::MakeUnique<LoadingDataCollector>(
-          resource_prefetch_predictor())),
+          resource_prefetch_predictor_.get(),
+          stats_collector_.get(),
+          config)),
       observer_(nullptr),
       weak_factory_(this) {
   resource_prefetch_predictor_->SetStatsCollector(stats_collector_.get());