Move infobar handling to a tab helper.

chrome/browser/task_manager/task_manager_browsertest.cc

Index: chrome/browser/task_manager/task_manager_browsertest.cc
diff --git a/chrome/browser/task_manager/task_manager_browsertest.cc b/chrome/browser/task_manager/task_manager_browsertest.cc
index 2fe1ad429a895543709c925ce4bea3290a36f849..fa9369ae71c00d60ce2d4b158f2191aa8990bbfa 100644
--- a/chrome/browser/task_manager/task_manager_browsertest.cc
+++ b/chrome/browser/task_manager/task_manager_browsertest.cc
@@ -11,6 +11,7 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/infobars/infobar_tab_helper.h"
 #include "chrome/browser/notifications/desktop_notification_service.h"
 #include "chrome/browser/notifications/notification.h"
 #include "chrome/browser/notifications/notification_test_util.h"
@@ -373,10 +374,11 @@ IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest,
   // Reload the extension using the "crashed extension" infobar while the task
   // manager is still visible. Make sure we don't crash and the extension
   // gets reloaded and noticed in the task manager.
-  TabContentsWrapper* current_tab = browser()->GetSelectedTabContentsWrapper();
-  ASSERT_EQ(1U, current_tab->infobar_count());
-  ConfirmInfoBarDelegate* delegate =
-      current_tab->GetInfoBarDelegateAt(0)->AsConfirmInfoBarDelegate();
+  InfoBarTabHelper* infobar_helper =
+      browser()->GetSelectedTabContentsWrapper()->infobar_tab_helper();
+  ASSERT_EQ(1U, infobar_helper->infobar_count());
+  ConfirmInfoBarDelegate* delegate = infobar_helper->
+      GetInfoBarDelegateAt(0)->AsConfirmInfoBarDelegate();
   ASSERT_TRUE(delegate);
   delegate->Accept();
   TaskManagerBrowserTestUtil::WaitForResourceChange(3);