Eliminate InfoBarTabHelper. Make InfoBarService a concrete class.

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"
-#include "chrome/browser/infobars/infobar_service.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
-#include "content/public/browser/web_contents_observer.h"
-#include "content/public/browser/web_contents_user_data.h"
-
-class InfoBarDelegate;
-
-// Per-tab info bar manager.
-class InfoBarTabHelper : public InfoBarService,
-                         public content::WebContentsObserver,
-                         public content::NotificationObserver,
-                         public content::WebContentsUserData<InfoBarTabHelper> {
- 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 InfoBarDelegate* AddInfoBar(
-      scoped_ptr<InfoBarDelegate> delegate) OVERRIDE;
-  virtual void RemoveInfoBar(InfoBarDelegate* 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,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
-
-  void RemoveInfoBarInternal(InfoBarDelegate* delegate, bool animate);
-  void RemoveAllInfoBars(bool animate);
-
-  // Message handlers.
-  void OnDidBlockDisplayingInsecureContent();
-  void OnDidBlockRunningInsecureContent();
-
-  // 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_