Rework arguments of HistoryService::AddPage()

chrome/browser/history/history_tab_helper.h

 // 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.
 
 #ifndef CHROME_BROWSER_HISTORY_HISTORY_TAB_HELPER_H_
 #define CHROME_BROWSER_HISTORY_HISTORY_TAB_HELPER_H_
 
 #include "base/memory/ref_counted.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_contents_observer.h"
 
 class HistoryService;
 class SkBitmap;
 struct ThumbnailScore;
 
 namespace history {
-class HistoryAddPageArgs;
+struct HistoryAddPageArgs;
 }
 
 class HistoryTabHelper : public content::WebContentsObserver,
                          public content::NotificationObserver {
  public:
   explicit HistoryTabHelper(content::WebContents* web_contents);
   virtual ~HistoryTabHelper();
 
   // Updates history with the specified navigation. This is called by
   // OnMsgNavigate to update history state.
   void UpdateHistoryForNavigation(
-      scoped_refptr<history::HistoryAddPageArgs> add_page_args);
+      const history::HistoryAddPageArgs& add_page_args);
 
   // Sends the page title to the history service. This is called when we receive
   // the page title and we know we want to update history.
   void UpdateHistoryPageTitle(const content::NavigationEntry& entry);
 
   // Returns the history::HistoryAddPageArgs to use for adding a page to
   // history.
-  scoped_refptr<history::HistoryAddPageArgs> CreateHistoryAddPageArgs(
+  history::HistoryAddPageArgs CreateHistoryAddPageArgs(
       const GURL& virtual_url,
       const content::LoadCommittedDetails& details,
       const content::FrameNavigateParams& params);
 
  private:
   // content::WebContentsObserver implementation.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
   virtual void DidNavigateMainFrame(
       const content::LoadCommittedDetails& details,
       const content::FrameNavigateParams& params) OVERRIDE;
@@ skipping 22 matching lines @@
   // prevents some weirdness because some AJAXy apps use titles for status
   // messages.
   bool received_page_title_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryTabHelper);
 };
 
 #endif  // CHROME_BROWSER_HISTORY_HISTORY_TAB_HELPER_H_