android: move ResourcePrefetchPredictor usage to LoadingPredictor.

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 22f54d3f3d3ccdb31515d16d0c4c0f3a325444ee..d5bd264009427aead4df1a4926e85807fee38f60 100644
--- a/chrome/browser/predictors/loading_predictor.cc
+++ b/chrome/browser/predictors/loading_predictor.cc
@@ -25,6 +25,10 @@ void LoadingPredictor::CancelPageLoadHint(const GURL& url) {
   resource_prefetch_predictor_->StopPrefetching(url);
 }
 
+void LoadingPredictor::StartInitialization() {
+  resource_prefetch_predictor_->StartInitialization();
+}
+
 ResourcePrefetchPredictor* LoadingPredictor::resource_prefetch_predictor()
     const {
   return resource_prefetch_predictor_.get();