[Eraser] First pass at removing the notification center panel.

chrome/browser/background/background_contents_service_unittest.cc

 // 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.
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/prefs/pref_service.h"
@@ skipping 173 matching lines @@
     message_center::MessageCenter::Initialize();
 #endif
     profile_manager_.reset(new TestingProfileManager(
         TestingBrowserProcess::GetGlobal()));
     ASSERT_TRUE(profile_manager_->SetUp());
     MessageCenterNotificationManager* manager =
         static_cast<MessageCenterNotificationManager*>(
             g_browser_process->notification_ui_manager());
     manager->SetMessageCenterTrayDelegateForTest(
         new message_center::FakeMessageCenterTrayDelegate(
-            message_center::MessageCenter::Get(), base::Closure()));
+            message_center::MessageCenter::Get()));
   }
 
   void TearDown() override {
     g_browser_process->notification_ui_manager()->CancelAll();
     profile_manager_.reset();
 #if !defined(OS_CHROMEOS)
     message_center::MessageCenter::Shutdown();
 #endif
     BrowserWithTestWindowTest::TearDown();
   }
@@ skipping 185 matching lines @@
   CreateCrashNotification(extension);
   CreateCrashNotification(extension);
 
   message_center::MessageCenter* message_center =
       message_center::MessageCenter::Get();
   message_center::NotificationList::Notifications notifications =
       message_center->GetVisibleNotifications();
   ASSERT_EQ(1u, notifications.size());
 }
 #endif