Remove implicit scoped_refptr operator T*

chrome/browser/history/history_tab_helper.cc

Index: chrome/browser/history/history_tab_helper.cc
diff --git a/chrome/browser/history/history_tab_helper.cc b/chrome/browser/history/history_tab_helper.cc
index 5c383732565e22096f123061702d17ca3b316861..c89c52025ce47211270eb3b51cc2a4a1c2ac0708 100644
--- a/chrome/browser/history/history_tab_helper.cc
+++ b/chrome/browser/history/history_tab_helper.cc
@@ -188,7 +188,7 @@ HistoryService* HistoryTabHelper::GetHistoryService() {
     return NULL;
 
   return HistoryServiceFactory::GetForProfile(profile,
-                                              Profile::IMPLICIT_ACCESS);
+                                              Profile::IMPLICIT_ACCESS).get();
 }
 
 void HistoryTabHelper::WebContentsDestroyed(WebContents* tab) {
@@ -200,7 +200,8 @@ void HistoryTabHelper::WebContentsDestroyed(WebContents* tab) {
     return;
 
   HistoryService* hs =
-      HistoryServiceFactory::GetForProfile(profile, Profile::IMPLICIT_ACCESS);
+      HistoryServiceFactory::GetForProfile(
+          profile, Profile::IMPLICIT_ACCESS).get();
   if (hs) {
     NavigationEntry* entry = tab->GetController().GetLastCommittedEntry();
     if (entry) {