[NoStatePrefetch] Track redirects in UMA

chrome/browser/prerender/prerender_manager.cc

Index: chrome/browser/prerender/prerender_manager.cc
diff --git a/chrome/browser/prerender/prerender_manager.cc b/chrome/browser/prerender/prerender_manager.cc
index d75bea655159f720ae427932af0260e3d09b615b..66c710991570c31b1d268e7289363b9baf3d58ae 100644
--- a/chrome/browser/prerender/prerender_manager.cc
+++ b/chrome/browser/prerender/prerender_manager.cc
@@ -553,8 +553,17 @@ void PrerenderManager::RecordPerceivedPageLoadTime(
 
 void PrerenderManager::RecordResourcePrefetch(Origin origin,
                                               bool is_main_resource,
+                                              bool is_redirect,
                                               bool is_no_store) {
-  histograms_->RecordResourcePrefetch(origin, is_main_resource, is_no_store);
+  histograms_->RecordResourcePrefetch(origin, is_main_resource, is_redirect,
+                                      is_no_store);
+}
+
+void PrerenderManager::RecordPrefetchRedirectCount(Origin origin,
+                                                   bool is_main_resource,
+                                                   size_t redirect_count) {
+  histograms_->RecordPrefetchRedirectCount(origin, is_main_resource,
+                                           redirect_count);
 }
 
 // static