Introduce InfoBarTabService API.

chrome/browser/ui/website_settings/website_settings_infobar_delegate.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_UI_WEBSITE_SETTINGS_WEBSITE_SETTINGS_INFOBAR_DELEGATE_H_
 #define CHROME_BROWSER_UI_WEBSITE_SETTINGS_WEBSITE_SETTINGS_INFOBAR_DELEGATE_H_
 
 #include "chrome/browser/api/infobars/confirm_infobar_delegate.h"
 
+class InfoBarTabHelper;
+
 // This class configures an infobar that is shown when the website settings UI
 // is closed and the settings for one or more site permissions have been
 // changed. The user is shown a message indicating that a reload of the page is
 // required for the changes to take effect, and presented a button to perform
 // the reload right from the infobar.
 class WebsiteSettingsInfobarDelegate : public ConfirmInfoBarDelegate {
  public:
   explicit WebsiteSettingsInfobarDelegate(InfoBarTabHelper* infobar_helper);
 
  private:
   // Overwridden from ConfirmInfoBarDelegate:
   virtual gfx::Image* GetIcon() const OVERRIDE;
   virtual Type GetInfoBarType() const OVERRIDE;
   virtual string16 GetMessageText() const OVERRIDE;
   virtual int GetButtons() const OVERRIDE;
   virtual string16 GetButtonLabel(InfoBarButton button) const OVERRIDE;
   virtual bool Accept() OVERRIDE;
 
   DISALLOW_COPY_AND_ASSIGN(WebsiteSettingsInfobarDelegate);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBSITE_SETTINGS_WEBSITE_SETTINGS_INFOBAR_DELEGATE_H_