Change infobar creation to use a public static Create() method on the infobar delegate classes.

chrome/browser/infobars/infobar_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_INFOBARS_INFOBAR_TAB_HELPER_H_
 #define CHROME_BROWSER_INFOBARS_INFOBAR_TAB_HELPER_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 13 matching lines @@
  private:
   friend class content::WebContentsUserData<InfoBarTabHelper>;
 
   typedef std::vector<InfoBarDelegate*> InfoBars;
 
   explicit InfoBarTabHelper(content::WebContents* web_contents);
   virtual ~InfoBarTabHelper();
 
   // InfoBarService:
   virtual void SetInfoBarsEnabled(bool enabled) OVERRIDE;
-  virtual bool AddInfoBar(InfoBarDelegate* delegate) OVERRIDE;
+  virtual InfoBarDelegate* AddInfoBar(
+      scoped_ptr<InfoBarDelegate> delegate) OVERRIDE;
   virtual void RemoveInfoBar(InfoBarDelegate* delegate) OVERRIDE;
-  virtual bool ReplaceInfoBar(InfoBarDelegate* old_delegate,
-                              InfoBarDelegate* new_delegate) OVERRIDE;
+  virtual InfoBarDelegate* ReplaceInfoBar(
+      InfoBarDelegate* old_delegate,
+      scoped_ptr<InfoBarDelegate> new_delegate) OVERRIDE;
   virtual size_t GetInfoBarCount() const OVERRIDE;
   virtual InfoBarDelegate* GetInfoBarDelegateAt(size_t index) OVERRIDE;
   virtual content::WebContents* GetWebContents() OVERRIDE;
 
   // content::WebContentsObserver:
   virtual void RenderViewGone(base::TerminationStatus status) OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // content::NotificationObserver:
   virtual void Observe(int type,
@@ skipping 10 matching lines @@
   // Delegates for InfoBars associated with this InfoBarTabHelper.
   InfoBars infobars_;
   bool infobars_enabled_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(InfoBarTabHelper);
 };
 
 #endif  // CHROME_BROWSER_INFOBARS_INFOBAR_TAB_HELPER_H_