[NoStatePrefetch] Add performance histograms.

chrome/browser/ui/search/instant_search_prerenderer.cc

Index: chrome/browser/ui/search/instant_search_prerenderer.cc
diff --git a/chrome/browser/ui/search/instant_search_prerenderer.cc b/chrome/browser/ui/search/instant_search_prerenderer.cc
index 95d179f7374ef5c86b7905a4863dda0d49c36dd4..dbf9f3546ca3a2861c807be3f015e094cd893bdd 100644
--- a/chrome/browser/ui/search/instant_search_prerenderer.cc
+++ b/chrome/browser/ui/search/instant_search_prerenderer.cc
@@ -66,7 +66,7 @@ void InstantSearchPrerenderer::Init(
   std::unique_ptr<prerender::PrerenderHandle> old_prerender_handle =
       std::move(prerender_handle_);
   prerender::PrerenderManager* prerender_manager =
-      prerender::PrerenderManagerFactory::GetForProfile(profile_);
+      prerender::PrerenderManagerFactory::GetForBrowserContext(profile_);
   if (prerender_manager) {
     prerender_handle_ = prerender_manager->AddPrerenderForInstant(
         prerender_url_, session_storage_namespace, size);
@@ -129,7 +129,7 @@ bool InstantSearchPrerenderer::UsePrerenderedPage(
   base::string16 search_terms =
       search::ExtractSearchTermsFromURL(profile_, url);
   prerender::PrerenderManager* prerender_manager =
-      prerender::PrerenderManagerFactory::GetForProfile(profile_);
+      prerender::PrerenderManagerFactory::GetForBrowserContext(profile_);
   if (search_terms.empty() || !params->target_contents ||
       !prerender_contents() || !prerender_manager ||
       !QueryMatchesPrefetch(search_terms) ||