Rework arguments of HistoryService::AddPage()

chrome/browser/ui/views/external_tab_container_win.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/ui/views/external_tab_container_win.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 416 matching lines @@
         content::FrameNavigateParams nav_params;
         nav_params.referrer = content::Referrer(referrer,
                                                 params.referrer.policy);
         nav_params.url = params.url;
         nav_params.page_id = -1;
         nav_params.transition = content::PAGE_TRANSITION_LINK;
 
         content::LoadCommittedDetails details;
         details.did_replace_entry = false;
 
-        scoped_refptr<history::HistoryAddPageArgs> add_page_args(
+        const history::HistoryAddPageArgs& add_page_args =
             tab_contents_->history_tab_helper()->
-                CreateHistoryAddPageArgs(params.url, details, nav_params));
+                CreateHistoryAddPageArgs(params.url, details, nav_params);
         tab_contents_->history_tab_helper()->
             UpdateHistoryForNavigation(add_page_args);
 
         return tab_contents_->web_contents();
       }
       break;
     default:
       NOTREACHED();
       break;
   }
@@ skipping 822 matching lines @@
   if (params.disposition == CURRENT_TAB) {
     DCHECK(route_all_top_level_navigations_);
     forward_params.disposition = NEW_FOREGROUND_TAB;
   }
   WebContents* new_contents =
       ExternalTabContainerWin::OpenURLFromTab(source, forward_params);
   // support only one navigation for a dummy tab before it is killed.
   ::DestroyWindow(GetNativeView());
   return new_contents;
 }