Introduce InfoBarTabService API.

chrome/browser/ui/gtk/infobars/translate_infobar_base_gtk.cc

Index: chrome/browser/ui/gtk/infobars/translate_infobar_base_gtk.cc
diff --git a/chrome/browser/ui/gtk/infobars/translate_infobar_base_gtk.cc b/chrome/browser/ui/gtk/infobars/translate_infobar_base_gtk.cc
index e0f7c8fea3f4e5822e7fa684d76c5dec87107cc2..97f943820034f09da5d439cab8289ca44d6ef84c 100644
--- a/chrome/browser/ui/gtk/infobars/translate_infobar_base_gtk.cc
+++ b/chrome/browser/ui/gtk/infobars/translate_infobar_base_gtk.cc
@@ -5,6 +5,7 @@
 #include "chrome/browser/ui/gtk/infobars/translate_infobar_base_gtk.h"
 
 #include "base/utf_string_conversions.h"
+#include "chrome/browser/infobars/infobar_tab_helper.h"
 #include "chrome/browser/translate/options_menu_model.h"
 #include "chrome/browser/translate/translate_infobar_delegate.h"
 #include "chrome/browser/ui/gtk/gtk_util.h"
@@ -194,18 +195,19 @@ void TranslateInfoBarBase::OnOptionsClicked(GtkWidget* sender) {
 }
 
 // TranslateInfoBarDelegate specific method:
-InfoBar* TranslateInfoBarDelegate::CreateInfoBar(InfoBarTabHelper* owner) {
+InfoBar* TranslateInfoBarDelegate::CreateInfoBar(InfoBarTabService* owner) {
+  InfoBarTabHelper* helper = static_cast<InfoBarTabHelper*>(owner);
   TranslateInfoBarBase* infobar = NULL;
   switch (type_) {
     case BEFORE_TRANSLATE:
-      infobar = new BeforeTranslateInfoBar(owner, this);
+      infobar = new BeforeTranslateInfoBar(helper, this);
       break;
     case AFTER_TRANSLATE:
-      infobar = new AfterTranslateInfoBar(owner, this);
+      infobar = new AfterTranslateInfoBar(helper, this);
       break;
     case TRANSLATING:
     case TRANSLATION_ERROR:
-      infobar = new TranslateMessageInfoBar(owner, this);
+      infobar = new TranslateMessageInfoBar(helper, this);
       break;
     default:
       NOTREACHED();