Introduce InfoBarTabService API.

chrome/browser/ui/cocoa/infobars/infobar_controller.mm

 // 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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/logging.h"  // for NOTREACHED()
 #include "base/mac/bundle_locations.h"
 #include "base/mac/mac_util.h"
 #include "base/sys_string_conversions.h"
@@ skipping 433 matching lines @@
   if (delegate_->AsConfirmInfoBarDelegate()->LinkClicked(disposition))
     [self removeSelf];
 }
 
 @end
 
 
 //////////////////////////////////////////////////////////////////////////
 // CreateInfoBar() implementations
 
-InfoBar* LinkInfoBarDelegate::CreateInfoBar(InfoBarTabHelper* owner) {
+InfoBar* LinkInfoBarDelegate::CreateInfoBar(InfoBarTabService* owner) {
+  InfoBarTabHelper* helper = (InfoBarTabHelper*)owner;
   LinkInfoBarController* controller =
-      [[LinkInfoBarController alloc] initWithDelegate:this owner:owner];
+      [[LinkInfoBarController alloc] initWithDelegate:this owner:helper];
   return new InfoBar(controller, this);
 }
 
-InfoBar* ConfirmInfoBarDelegate::CreateInfoBar(InfoBarTabHelper* owner) {
+InfoBar* ConfirmInfoBarDelegate::CreateInfoBar(InfoBarTabService* owner) {
+  InfoBarTabHelper* helper = (InfoBarTabHelper*)owner;
   ConfirmInfoBarController* controller =
-      [[ConfirmInfoBarController alloc] initWithDelegate:this owner:owner];
+      [[ConfirmInfoBarController alloc] initWithDelegate:this owner:helper];
   return new InfoBar(controller, this);
 }