predictors: Move more methods from ResourcePrefetchPredictor into LoadingDataCollector.

chrome/browser/predictors/loading_stats_collector.h

Index: chrome/browser/predictors/loading_stats_collector.h
diff --git a/chrome/browser/predictors/loading_stats_collector.h b/chrome/browser/predictors/loading_stats_collector.h
index c4ad6ed7939662de415bf91b847e38a4f5e70d29..f9b64e789c8892ba0f6e4b5d6458d8b8ce968b3c 100644
--- a/chrome/browser/predictors/loading_stats_collector.h
+++ b/chrome/browser/predictors/loading_stats_collector.h
@@ -12,12 +12,15 @@
 
 #include "base/macros.h"
 #include "base/time/time.h"
-#include "chrome/browser/predictors/resource_prefetch_predictor.h"
 #include "chrome/browser/predictors/resource_prefetcher.h"
 #include "url/gurl.h"
 
 namespace predictors {
 
+class ResourcePrefetchPredictor;
+struct LoadingPredictorConfig;
+struct PageRequestSummary;
+
 namespace internal {
 constexpr char kResourcePrefetchPredictorPrecisionHistogram[] =
     "ResourcePrefetchPredictor.LearningPrecision";
@@ -56,8 +59,7 @@ class LoadingStatsCollector {
   // actions taken for a given page load if any. The summary is compared with a
   // prediction by ResourcePrefetchPredictor as well.
   // All results are reported to UMA.
-  void RecordPageRequestSummary(
-      const ResourcePrefetchPredictor::PageRequestSummary& summary);
+  void RecordPageRequestSummary(const PageRequestSummary& summary);
   // Evicts all stale stats that are kept in memory. All speculative actions are
   // reported and considered as waste.
   void CleanupAbandonedStats();