Infobar system refactor.

chrome/browser/extensions/theme_installed_infobar_delegate.h

Index: chrome/browser/extensions/theme_installed_infobar_delegate.h
===================================================================
--- chrome/browser/extensions/theme_installed_infobar_delegate.h	(revision 238220)
+++ chrome/browser/extensions/theme_installed_infobar_delegate.h	(working copy)
@@ -26,8 +26,8 @@
 class ThemeInstalledInfoBarDelegate : public ConfirmInfoBarDelegate,
                                       public content::NotificationObserver {
  public:
-  // Creates a theme installed infobar delegate and adds it to the last active
-  // tab on |profile|.
+  // Creates a theme installed infobar and delegate and adds the infobar to the
+  // last active tab on |profile|.
   static void Create(const extensions::Extension* new_theme,
                      Profile* profile,
                      const std::string& previous_theme_id,
@@ -34,8 +34,7 @@
                      bool previous_using_native_theme);
 
  private:
-  ThemeInstalledInfoBarDelegate(InfoBarService* infobar_service,
-                                ExtensionService* extension_service,
+  ThemeInstalledInfoBarDelegate(ExtensionService* extension_service,
                                 ThemeService* theme_service,
                                 const extensions::Extension* new_theme,
                                 const std::string& previous_theme_id,