Topsites become keyedService based.

chrome/browser/history/chrome_history_client.cc

Index: chrome/browser/history/chrome_history_client.cc
diff --git a/chrome/browser/history/chrome_history_client.cc b/chrome/browser/history/chrome_history_client.cc
index b6a529b785df8c44f037eb5a4bf0b8d4ab329c8a..2cb84ae1fdea03d3647eddddf5042c553d68a960 100644
--- a/chrome/browser/history/chrome_history_client.cc
+++ b/chrome/browser/history/chrome_history_client.cc
@@ -17,9 +17,10 @@
 
 using bookmarks::BookmarkModel;
 
-ChromeHistoryClient::ChromeHistoryClient(BookmarkModel* bookmark_model,
-                                         Profile* profile,
-                                         history::TopSites* top_sites)
+ChromeHistoryClient::ChromeHistoryClient(
+    BookmarkModel* bookmark_model,
+    Profile* profile,
+    const scoped_refptr<history::TopSites>& top_sites)
     : bookmark_model_(bookmark_model),
       profile_(profile),
       top_sites_(top_sites) {
@@ -85,8 +86,7 @@ void ChromeHistoryClient::Shutdown() {
 
 void ChromeHistoryClient::TopSitesLoaded(history::TopSites* top_sites) {
   content::NotificationService::current()->Notify(
-      chrome::NOTIFICATION_TOP_SITES_LOADED,
-      content::Source<Profile>(profile_),
+      chrome::NOTIFICATION_TOP_SITES_LOADED, content::Source<Profile>(profile_),
       content::Details<history::TopSites>(top_sites));
 }