Fixing some more instances where I put in HistoryServiceFactory::GetForProfile which will force cre…

chrome/browser/history/history_tab_helper.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/history/history_tab_helper.h"
 
 #include <utility>
 
 #include "chrome/browser/history/history.h"
 #include "chrome/browser/history/history_service_factory.h"
@@ skipping 164 matching lines @@
 }
 
 void HistoryTabHelper::WebContentsDestroyed(WebContents* tab) {
   // We update the history for this URL.
   // The content returned from web_contents() has been destroyed by now.
   // We need to use tab value directly.
   Profile* profile = Profile::FromBrowserContext(tab->GetBrowserContext());
   if (profile->IsOffTheRecord())
     return;
 
-  HistoryService* hs =
-      HistoryServiceFactory::GetForProfile(profile, Profile::IMPLICIT_ACCESS);
+  HistoryService* hs = HistoryServiceFactory::GetForProfileIfExists(
+      profile, Profile::IMPLICIT_ACCESS);
   if (hs) {
     NavigationEntry* entry = tab->GetController().GetLastCommittedEntry();
     if (entry) {
       hs->UpdateWithPageEndTime(tab, entry->GetPageID(), tab->GetURL(),
                                 base::Time::Now());
     }
   }
 }