Cleanup in components/search and chrome/browser/search

chrome/browser/search/instant_service.cc

Index: chrome/browser/search/instant_service.cc
diff --git a/chrome/browser/search/instant_service.cc b/chrome/browser/search/instant_service.cc
index 3d5863dbb45a41b4987ce9f464745cb2a868e13c..4a1c3b142c8ca4076e58b0b8ee88481487c72826 100644
--- a/chrome/browser/search/instant_service.cc
+++ b/chrome/browser/search/instant_service.cc
@@ -502,7 +502,7 @@ void InstantService::TopSitesChanged(history::TopSites* top_sites,
 }
 
 void InstantService::ResetInstantSearchPrerendererIfNecessary() {
-  if (!search::ShouldPrefetchSearchResults())
+  if (!search::IsInstantExtendedAPIEnabled())
     return;
 
   GURL url(search::GetSearchResultPrefetchBaseURL(profile_));